0000000000969454

AUTHOR

Markus Albrecht

showing 169 related works from this author

Pentafluorophenyl salicylamine receptors in anion–π interaction studies

2012

A crystal structure analysis confirms the appropriateness of pentafluorophenyl salicylamine (1a) as a π-acceptor for anion–π interactions. Crystals of 1a·HCl show that the OH-group fixes the anion in a η2-type binding motif above the electron-deficient arene. Attempts to find some relevance for this weak intermolecular force in solution failed. Stronger CH–, NH– and OH–anion interactions are dominant over the weak anion–π interactions. Due to the hydrogen bonding, the non-fluorinated receptor exhibits the highest binding constants within this series.

Interaction studiesCrystallographyChemistryHydrogen bondNmr titrationInorganic chemistryIntermolecular forceChemieGeneral ChemistryCrystal structureReceptorta116IonSupramolecular Chemistry
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Stacking of Sterically Congested Trifluoromethylated Aromatics in their Crystals – The Role of Weak F···π or F···F Contacts

2020

European journal of organic chemistry : EurJOC 2020(38), 6073-6077 (2020). doi:10.1002/ejoc.202001008

Steric effectsaromaattiset yhdisteetChemistryOrganic ChemistryStackingstacking interactionskiteet540fluoriCrystallographyddc:540solid-state structurescrystalssupramolekulaarinen kemiafluorinated compoundsPhysical and Theoretical Chemistryröntgenkristallografiatrifluoromethyl substituents
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Weak Intermolecular Anion–π Interactions in Pentafluorobenzyl-Substituted Ammonium Betaines

2012

A series of ammonium–carboxylate and ammonium–sulfonate betaines was synthesized and studied by single-crystal X-ray diffraction analysis to investigate the weak intermolecular interactions as well as the intramolecular interactions in the solid state. None of the expected intramolecular anion–π interactions could be observed, probably because of the steric demands and the reduced nucleophilicity of the anionic part of the betaines. Nevertheless, a weak intermolecular anion–π interaction between the anionic part of the betaine and the pentafluorophenyl unit is present in the structure of 5a.

Steric effectschemistry.chemical_classificationStereochemistryIntermolecular forceSupramolecular chemistryChemieMedicinal chemistryIonInorganic Chemistrychemistry.chemical_compoundBetainechemistryNucleophileIntramolecular forceNon-covalent interactionsta116EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
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Helicates with Ether-Substituted Catechol Esters as Ligands

2020

European journal of organic chemistry 2020(32), 5161-5172 (2020). doi:10.1002/ejoc.202000843

Molecular switchCatecholesteritOrganic ChemistryEtherkompleksiyhdisteet540Combinatorial chemistrymolecular switchhelicatethermodynamicschemistry.chemical_compoundlitiumchemistrytermodynamiikkatemplatingddc:540supramolekulaarinen kemiacatecholatePhysical and Theoretical Chemistry
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2H -[1,3]Oxazino[3,2-α]indolin-4(3H )-ones: A Class Of Polyheterocyclic Indole-Based Compounds

2018

Indole testClass (set theory)Acid catalysis010405 organic chemistryStereochemistryChemistryOrganic ChemistryPhysical and Theoretical Chemistry010402 general chemistry01 natural sciences0104 chemical sciencesEuropean Journal of Organic Chemistry
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The pentafluorophenyl group as π-acceptor for anions: a case study

2015

Chemical science 6(1), 354-359 (2015). doi:10.1039/C4SC02762K

positive chargesChemistryStereochemistryChemieSolid-stateGeneral Chemistryhapticities540side-chainsstructural dataAcceptor3. Good healthIonevaluation criteriakey elementsComputational chemistryGroup (periodic table)pentafluorophenylddc:540HapticitySide chainStatistical analysiselectron-deficientta116Chemical Science
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Hierarchical, Lithium‐Templated Assembly of Helicate‐Type Complexes: How Versatile Is This Reaction?

2007

Catechol ligands that bear carbonyl functions such as esters or aldehydes in the 3-position (1a–c-H2) form triple-stranded, helicate-type complexes [Li3(1a–c)6Ti2]– with titanium(IV) and the corresponding double-stranded compounds [Li2(1a–c)4B2] with boron(III) in hierarchical, lithium-templatedprocesses. The related 8-hydroxyquinoline ligands 2a,b-H can be used for the formation of similar complexes[Li3(2a,b)6M2]+ with cobalt(II), nickel(II), or zinc(II). A prerequisite for the formation of the lithium-bridged dimers is a negative charge of the mononuclear complexes, which are able to electrostatically attract the lithium cations and thus compensate the repulsion between the cations. (© Wi…

CatecholStereochemistrychemistry.chemical_elementZincInorganic Chemistrychemistry.chemical_compoundNickelchemistryNegative chargePolymer chemistryLithiumBoronCobaltTitaniumEuropean Journal of Inorganic Chemistry
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Single-Crystal X-ray Diffraction and Solution Studies of Anion-π Interactions inN-(Pentafluorobenzyl)pyridinium Salts

2014

A solid-state structural study on anion–π interaction in various N-(pentafluorobenzyl)pyridinium salts accompanied by NMR spectroscopic investigations is presented. The crystal structures of 1a–1d reveal different kinds of contacts with anions, including anion–π interactions. In particular, the solid-state structure of 1b-I3 shows distinct evidence of anion–π interactions. Attempts to study anion–π interactions in solution were not successful, but their presence in solution could not be ruled out.

chemistry.chemical_classificationchemistry.chemical_compoundCrystallographychemistryOrganic ChemistryInorganic chemistryX-ray crystallographyNon-covalent interactionsPyridiniumCrystal structurePhysical and Theoretical ChemistrySingle crystalIonEuropean Journal of Organic Chemistry
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From attraction to repulsion : anion–π interactions between bromide and fluorinated phenyl groups

2011

Anion–π interactions in crystals of fluorobenzyl ammonium salts depend on the degree of fluorination at the aromatics.

AnionsBromidesBenzylaminesHalogenationInorganic chemistryMolecular ConformationChemieElectronsCrystallography X-RayCatalysisPiperazinesDegree (temperature)Ionchemistry.chemical_compoundBromidePolymer chemistryMaterials ChemistryAmmoniumMetals and AlloysHydrogen BondingGeneral ChemistryAttractionSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsFluorobenzenesQuaternary Ammonium CompoundschemistryCeramics and Composites
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Solid State Structures of Amide-Substituted 8-Hydroxyquinoline Derivatives

2000

Abstract The amide substituted 8-hydroxyquinoline derivatives 3 and 4 form, in the solid state, hydrogen bonded polymers. Polymeric 3 adopts a helical conformation while 4 forms a double-stranded ladder-type structure.

chemistry.chemical_classificationHydrogenHydrogen bondOrganic ChemistryLow-barrier hydrogen bondSolid-statechemistry.chemical_element8-HydroxyquinolinePolymerBiochemistrySolid state structurechemistry.chemical_compoundchemistryAmideDrug DiscoveryPolymer chemistryOrganic chemistryTetrahedron
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Synthesis of 7-Pentafluorophenyl-1H-indole: An Anion Receptor for Anion–π Interactions

2014

7-Pentafluorophenyl-1H-indole has the potential to be a key compound for the investigation of anion–π interactions in solution. Unfortunately, it was not possible to obtain it by aryl–aryl coupling reaction. Finally, it has been prepared by Bartoli indole synthesis. The key compound as well as analogues were submitted to preliminary studies of anion binding. Single crystals of two key receptors were obtained.

Indole testMolecular recognitionChemistryStereochemistryOrganic ChemistryChemieHalideBartoli indole synthesisAnion bindingCombinatorial chemistryAnion receptorCoupling reactionIonSynlett
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Connecting Electron-Deficient and Electron-Rich Aromatics to Support Intermolecular Interactions in Crystals

2015

Five compounds bearing electron-deficient pentafluorophenyl as well as electron-rich (salicylate or indole) aromatic moieties connected by amide or ester linkages were investigated by X-ray diffraction. In the crystals, various interactions (π–π, lone pair–π) between the different aromatic units are important structure controlling factors in addition to the stronger inter- or intramolecular hydrogen bonds induced by the amide and ester moieties. The hydrogen bonding leads to polymeric and macrocyclic assembly of the molecular building blocks.

Indole testHydrogen bondChemistryOrganic ChemistryIntermolecular forceElectronCrystal engineeringPhotochemistrychemistry.chemical_compoundIntramolecular forceAmidePolymer chemistryPi interactionPhysical and Theoretical ChemistryEuropean Journal of Organic Chemistry
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Solid state anion–π interactions involving polyhalides

2013

The stabilization of polyhalides in the solid state with the support of electron-deficient pentafluorophenyl groups is described. Furthermore, a synthetic approach towards the sensitive tetraiodide dianion is described and ESI mass spectrometric evidence for its presence in solution is reported.

AnionsModels MolecularSpectrometry Mass Electrospray Ionizationmedicine.diagnostic_testChemistryElectrospray ionizationInorganic chemistryChemieSolid-stateAnalytical chemistryMass spectrometrymedicine.disease_causeMass spectrometricIonInorganic ChemistryHalogensSpectrophotometrymedicineSpectrophotometry Ultravioletta116UltravioletDalton Trans.
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Connecting Electron-Deficient and Electron-Rich Aromatics to Support Intermolecular Interactions in Crystals (Eur. J. Org. Chem. 15/2015)

2015

Computational chemistryChemistryOrganic ChemistryIntermolecular forcePi interactionElectronPhysical and Theoretical ChemistryCrystal engineeringEuropean Journal of Organic Chemistry
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Structural Versatility of Anion−π Interactions in Halide Salts with Pentafluorophenyl Substituted Cations

2008

A series of pentafluorophenyl substituted ammonium, iminium, amidinium, and phosphonium halides are presented which show extensive anion-pi interactions. Hereby, the well-known anion-donor-pi-acceptor as well as "eta6" anion-pi-complex type interactions are observed. The latter is supported by fixation of the anion on top of the aromatic system through hydrogen bonding. This arrangement was investigated by theoretical methods showing a highly attractive anion-pi interaction. In addition an eta2-type coordination of the anions to only two C-atoms of the electron-deficient ring system is described.

Hydrogen bondHalideIminiumGeneral ChemistryRing (chemistry)PhotochemistryBiochemistryCatalysisIonchemistry.chemical_compoundColloid and Surface ChemistrychemistryPolymer chemistryTheoretical methodsAmmoniumPhosphoniumJournal of the American Chemical Society
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Synthesis of Polycyclic Indolines by Utilizing a Reduction/Cyclization Cascade Reaction

2021

European journal of organic chemistry 2021(45), 6097-6101 (2021). doi:10.1002/ejoc.202101191

Reduction (complexity)Acid catalysisCascade reactionChemistryddc:540Organic ChemistryPhysical and Theoretical Chemistry540Combinatorial chemistryEuropean Journal of Organic Chemistry
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Di-, Tri-, and Tetra(pentafluorophenyl) Derivatives for Oligotopic Anion−π Interactions

2013

The present study describes a series of pentafluorobenzyl ammonium salts with two, three, or four C6F5 units in order to investigate simultaneous interactions of several perfluorinated arenes with anions in the crystalline state. Most of the structures show multiple anion-π contacts. However, only 6·2HI reveals an effective encapsulation of the iodide ion by the aromatic units. For comparison, the structure of 4b is investigated because it offers two π-systems with inverse charge distribution to a bromide anion. Only the electron-deficient π-system of the pentafluorophenyl group interacts with the anion.

biologyChemistryChemieCharge densitybiology.organism_classificationMedicinal chemistryIonInorganic ChemistryIodide ionchemistry.chemical_compoundBromideTetraAmmoniumPhysical and Theoretical Chemistryta116Inorganic Chemistry
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Water-Soluble Cuprizone Derivative: Synthesis, Characterization, and in Vitro Studies

2019

The cuprizone mouse model is one of the most accepted model systems for the investigation of oligodendrocyte degeneration, a process critically involved in the pathogenesis of diseases such as multiple sclerosis or schizophrenia. In order to substitute the in vivo experiments by in vitro approaches, the amine derivative BiMPi is introduced as a water-soluble alternative to cuprizone. Regarding superoxide dismutase activity, toxicity for oligodendrocytes, and disturbance of mitochondrial membrane potential, BiMPi shows similar in vitro effects as is observed in vivo for cuprizone. peerReviewed

synthesispatogeneesiGeneral Chemical EngineeringDegeneration (medical)010402 general chemistry01 natural sciencesneurokemialcsh:ChemistryPathogenesis03 medical and health scienceschemistry.chemical_compound0302 clinical medicinemedicinecharacterizationsynteesita116water-soluble cuprizone derivativekemiallinen synteesiin Vitro studiesamiinitChemistryta1182General ChemistryOligodendrocyteIn vitro3. Good health0104 chemical sciencesmedicine.anatomical_structureWater solublelcsh:QD1-999Biochemistryin vitro -menetelmä030217 neurology & neurosurgeryDerivative (chemistry)
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Zinc(II) complexes of amide- and urea-substituted 8-hydroxyquinolines

2002

Abstract A series of amide- and urea-substituted 8-hydroxyquinoline ligands 1–6-H are used for the formation of zinc(II) complexes. Hereby in general 2:1 complexes are obtained and the X-ray structure of [(3)2Zn] reveals the presence of a coordination polymer in the solid state. Only the derivatives of 7-amino-8-hydroxyquinoline 4-H and 5-H form trinuclear hexa-helical 6:3 complexes which exhibit interesting structural and NMR and fluorescence spectroscopic properties.

Coordination polymerStereochemistrySolid-statechemistry.chemical_element8-HydroxyquinolineZincFluorescenceInorganic Chemistrychemistry.chemical_compoundchemistryAmidePolymer chemistryMaterials ChemistryUreaHydroxyquinolinesPhysical and Theoretical ChemistryInorganica Chimica Acta
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Experimental investigation of anion-π interactions : Applications and biochemical relevance

2015

Chemical communications 52(9), 1778 - 1795(2016). doi:10.1039/C5CC09072E

Anionsanion-pi interactionsSolid-stateChemieNanotechnology010402 general chemistry01 natural sciencesCatalysisIonGas phasekemialliset sidoksetTime frameMaterials Chemistrysupramolekulaarinen kemiaanioni-π-vuorovaikutus010405 organic chemistryChemistryIntermolecular forceMetals and AlloysGeneral Chemistry5400104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialsintermolecular forcesnon-covalent interactionsChemical physicsddc:540Ceramics and Composites
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CH-Directed Anion-π Interactions in the Crystals of Pentafluorobenzyl-Substituted Ammonium and Pyridinium Salts

2010

Simple pentafluorobenzyl-substituted ammonium and pyridinium salts with different anions can be easily obtained by treatment of the parent amine or pyridine with the respective pentafluorobenzyl halide. Hexafluorophosphate is introduced as the anion by salt metathesis. In the case of the ammonium salt 4, water co-crystallisation seems to suppress effective anion-pi interactions of bromide with the electron-deficient aromatic system, whereas with salts 5 and 6 such interactions are observed despite the presence of water. However, due to asymmetric hydrogen-bonding interactions with ammonium side chains, the anion of 5 is located close to the rim of the pentafluorophenyl group (eta(1) interac…

AnionsHydrocarbons FluorinatedInorganic chemistryChemieMolecular ConformationSalt (chemistry)Pyridinium CompoundsCrystallography X-RayMedicinal chemistryCatalysischemistry.chemical_compoundBromideHexafluorophosphatePyridineAmmoniumPi interactionchemistry.chemical_classificationMolecular StructureChemistryHydrogen bondOrganic ChemistryHydrogen BondingGeneral ChemistryCarbonQuaternary Ammonium CompoundsModels ChemicalSaltsPyridiniumChemistry - A European Journal
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CH-Anion versus anion-π interactions in the crystal and in solution of pentafluorobenzyl phosphonium salts

2010

A series of phosphonium salts with pentafluorobenzyl substituents have been synthesized and were investigated in the crystal as well as in solution. The solid state structures of 1a, 1b and 2d reveal the presence of anion-π as well as CH-anion interactions. The two attractive, yet competitive forces seem to act in concert and a directing effect of the CH interaction on the relative position between anion and π-system is observed. The search for anion-π interactions in solution failed. Only CH-anion interactions proved to be important in solution.

Inorganic ChemistryCrystalchemistry.chemical_compoundchemistryPolymer chemistryInorganic chemistrySolid-stateChemiePhosphoniumIon
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Anion Receptors Based on a Quinoline Backbone

2007

2-Amido-8-urea substituted quinoline derivatives are potent receptors for the binding of halide or benzoate anions in chloroform. The selectivity and affinity of the receptors for fluoride can be tuned by variation of the substituents at the receptor side chains. Computational considerations show that the cleft of the receptors provides space for effective binding of F–, but not bigger anions.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)

chemistry.chemical_compoundChloroformchemistryStereochemistryOrganic ChemistryQuinolineSide chainHalidePhysical and Theoretical ChemistryReceptorSelectivityFluorideFluorescenceEuropean Journal of Organic Chemistry
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CF3: An Electron-Withdrawing Substituent for Aromatic Anion Acceptors? “Side-On” versus “On-Top” Binding of Halides

2016

The ability of multiple CF3 -substituted arenes to act as acceptors for anions is investigated. The results of quantum-chemical calculations show that a high degree of trifluoromethyl substitution at the aromatic ring results in a positive quadrupole moment. However, depending on the polarizability of the anion and on the substitution at the arene, three different modes of interaction, namely Meisenheimer complex, side-on hydrogen bonding, or anion-π interaction, can occur. Experimentally, the side-on as well as a η(2) -type π-complex are observed in the crystal, whereas in solution only side-on binding is found.

Trifluoromethyl010405 organic chemistryHydrogen bondChemistryStereochemistryOrganic Chemistryanion acceptorsSubstituentGeneral ChemistryCrystal structureCF3-substituted arenes010402 general chemistryRing (chemistry)01 natural sciencesCatalysisMeisenheimer complex3. Good health0104 chemical sciencesCrystallographychemistry.chemical_compoundPolarizabilityPolar effectta116Chemistry: A European Journal
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Shedding Light on the Interactions of Hydrocarbon Ester Substituents upon Formation of Dimeric Titanium(IV) Triscatecholates in DMSO Solution

2020

Abstract The dissociation of hierarchically formed dimeric triple lithium bridged triscatecholate titanium(IV) helicates with hydrocarbyl esters as side groups is systematically investigated in DMSO. Primary alkyl, alkenyl, alkynyl as well as benzyl esters are studied in order to minimize steric effects close to the helicate core. The 1H NMR dimerization constants for the monomer–dimer equilibrium show some solvent dependent influence of the side chains on the dimer stability. In the dimer, the ability of the hydrocarbyl ester groups to aggregate minimizes their contacts with the solvent molecules. Due to this, most solvophobic alkyl groups show the highest dimerization tendency followed by…

Steric effectscoordination compoundsesteritDimersolvent effects010402 general chemistry01 natural sciencesMedicinal chemistryCatalysishelicatechemistry.chemical_compoundthermodynamicshelicate thermodynamicsSide chainMoleculeAlkylchemistry.chemical_classificationCoordination Chemistry | Hot PaperFull Paper010405 organic chemistryOrganic ChemistrykompleksiyhdisteetGeneral ChemistryFull PapersTriple bond0104 chemical sciences3. Good healthchemistrytermodynamiikkaweak interactionsSolvent effectsSolvophobicChemistry (Weinheim an Der Bergstrasse, Germany)
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Anion-π Interactions with Fluoroarenes.

2015

ChemistryChemieOrganic chemistryGeneral ChemistryChemical reviews
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Iron(III) Chloride as a Mild Catalyst for the Dearomatizing Cyclization of N-Acylindoles

2020

A catalytic approach for the preparation of indolines by dearomatizing cyclization is presented. FeCl3 acts as a catalyst to afford tetracyclic 5a,6-dihydro-12H-indolo[2,1-b][1,3]benzoxazin-12-ones in good yields. The cyclization also proceeds with tosylamides forming C-N bonds in 53% yield.

chemistry.chemical_compound010405 organic chemistryChemistryYield (chemistry)Organic Chemistry010402 general chemistry01 natural sciencesMedicinal chemistryIron(III) chloride0104 chemical sciencesCatalysisThe Journal of Organic Chemistry
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A Supramolecular Chiral Auxiliary Approach: “Remote Control ”of Stereochemistry at a Hierarchically Assembled Dimeric Helicate

2016

Dimeric hierarchically-assembled titanium(IV) helicates are in solvent-dependent equilibrium with the corresponding monomers. Statistically formed mixtures of such complexes bearing chiral stereocontrolling ligands and achiral diene-substituted ligands show high diastereoselectivity and reasonable enantioselectivity in the Diels-Alder reaction with maleimides if the reaction proceeds with the dimer but not with the monomer. Thus, solvent dependent switching between the monomer and dimer enables on/off switching of the enantioselectivity.

Chiral auxiliary010405 organic chemistryChemistryDimerOrganic ChemistrySupramolecular chemistryNanotechnologyGeneral Chemistry010402 general chemistrychemistry01 natural sciencesCatalysis0104 chemical sciencesSolventchemistry.chemical_compoundCrystallographyMonomerSelf-assemblytitaniumta116dimeric helicateDiels–Alder reactionChemistry: A European Journal
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Chasing Weak Forces: Hierarchically Assembled Helicates as a Probe for the Evaluation of the Energetics of Weak Interactions.

2017

London dispersion forces are the weakest interactions between molecules. Because of this, their influence on chemical processes is often low, but can definitely not be ignored, and even becomes important in cases of molecules with large contact surfaces. Hierarchically assembled dinuclear titanium(IV) helicates represent a rare example in which the direct observation of London dispersion forces is possible in solution even in the presence of strong cohesive solvent effects. Hereby, the dispersion forces do not unlimitedly support the formation of the dimeric complexes. Although they have some favorable enthalpic contribution to the dimerization of the monomeric complex units, large flexible…

sondit010405 organic chemistryChemistryStereochemistryDirect observationhelicatesGeneral ChemistryWeak interactioninteractions010402 general chemistry01 natural sciencesBiochemistryLondon dispersion forceCatalysis0104 chemical scienceschemistry.chemical_compoundColloid and Surface ChemistryMonomerContact surfacesChemical physicsweak forcesMoleculeSolvent effectsprobesta116Journal of the American Chemical Society
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Perfluoro-1,1′-biphenyl and perfluoronaphthalene and their derivatives as π-acceptors for anions

2015

Addition of anions to perfluorinated 1,1′-biphenyl 1 or naphthalene 2 results in a shift of the 19F NMR signals. However, any specific interaction cannot be assigned to this effect. In order to study the interaction in more detail, the salt derivatives 3 and 4 were prepared and studied by single crystal X-ray diffraction revealing weak anion–π interactions in the solid state.

Diffractionchemistry.chemical_classificationBiphenylanion-pi interactionsSolid-stateSalt (chemistry)General ChemistryFluorine-19 NMRCatalysisIonCrystallographychemistry.chemical_compoundchemistryMaterials ChemistryOrganic chemistryta116Single crystalNaphthaleneNew Journal of Chemistry
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Cooperativity of H-bonding and anion–π interaction in the binding of anions with neutral π-acceptors

2012

A rare anion-π complex between bromide and a neutral receptor is reported and related receptor systems are studied with a series of anions. The interaction is observed in the solid state and in solution, and further evidence for it is obtained by a computational study.

AnionsBromidesModels MolecularMagnetic Resonance SpectroscopyChemistryHydrogen bondInorganic chemistryChemieMolecular ConformationMetals and AlloysSolid-stateHydrogen BondingCooperativityGeneral ChemistryCatalysisSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsIonCrystallographychemistry.chemical_compoundBromideBenzamidesMaterials ChemistryCeramics and Compositesta116Chemical Communications
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Coordinatively Unsaturated Lanthanide(III) Helicates: Luminescence Sensors for Adenosine Monophosphate in Aqueous Media

2016

Coordinatively unsaturated double-stranded helicates [(H2 L)2 Eu2 (NO3 )2 (H2 O)4 ](NO3 )4 , [(H2 L)2 Tb2 (H2 O)6 ](NO3 )6 , and [(H2 L)2 Tb2 (H2 O)6 ]Cl6 (H2 L=butanedioicacid-1,4-bis[2-(2-pyridinylmethylene)hydrazide]) are easily obtained by self-assembly from the ligand and the corresponding lanthanide(III) salts. The complexes are characterized by X-ray crystallography showing the helical arrangement of the ligands. Co-ligands at the metal ions can be easily substituted by appropriate anions. A specific luminescence response of AMP in presence of ADP, ATP, and other anions is observed. Specificity is assigned to the perfect size match of AMP to bridge the two metal centers and to replac…

LanthanideCoordination sphereadenosine monophosphateStereochemistryMetal ions in aqueous solutionHydrazide010402 general chemistry01 natural sciencesCatalysisMetalchemistry.chemical_compoundluminescencelanthanidesta116sensingQuenching (fluorescence)ChemistryLigand010405 organic chemistryhelicatesGeneral ChemistryGeneral Medicine0104 chemical sciences3. Good healthCrystallographyvisual_artvisual_art.visual_art_mediumLuminescenceAngewandte Chemie International Edition
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Expanding the Size of Catecholesters - Modified Ligands for the Hierarchical Assembly of Dinuclear Titanium(IV) Helicates

2015

Five 2,3-dihydroxybenzoic acid derivatives 1 – 5 were used as starting materials to obtain the corresponding methyl and ethyl esters. Those were applied as ligands in the hierarchical self-assembly of lithium-bridged dinuclear titanium(IV) complexes 1a–4a, 1b–3b, and 5b. The equilibria between the mononuclear triscatecholate complexes (monomer) and the dinuclear helicates (dimer) were observed by 1H NMR spectroscopy in [D6]DMSO and [D4]MeOH at room temperature.

Inorganic Chemistrychemistry.chemical_compound1h nmr spectroscopyMonomerchemistryDimerPolymer chemistryOrganic chemistrychemistry.chemical_elementNuclear magnetic resonance spectroscopyEthyl esterTitaniumZeitschrift für anorganische und allgemeine Chemie
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Synthesis of Quinoline-Based Anion Receptors and Preliminary Anion Binding Studies with Selected Derivatives

2014

Six quinoline-based anion receptors were designed, prepared, and characterized, among which the crystal structure of an indole derivative was obtained. Selected receptors were tested for the recognition of halide anions in solution and showed some selectivity of chloride over bromide and iodide.

chemistry.chemical_classificationIndole testStereochemistryOrganic ChemistryIodideQuinolineHalideChlorideMedicinal chemistryCatalysischemistry.chemical_compoundchemistryBromidemedicineAnion bindingSelectivitymedicine.drugSynthesis
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Controlling the position of anions relative to a pentafluorophenyl groupw

2012

The position of an anion above an electron-deficient arene can be controlled by the geometry of appended directing groups. Here a series of ammonium substituted pentafluorophenyl derivatives is investigated. The presented results are one step on the way to find the ideal structural features for an effective and superior receptor for anion–π studies.

CrystallographyPosition (vector)StereochemistryGroup (periodic table)ChemistryMaterials ChemistryChemieOne-StepGeneral ChemistryIdeal (ring theory)ta116CatalysisIonNew Journal of Chemistry
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Synthesis of N‐Fused Indolines via Copper (II)‐Catalyzed Dearomatizing Cyclization of Indoles

2021

Advanced synthesis & catalysis 363(12), 3121-3126 (2021). doi:10.1002/adsc.202100290

aromaattiset yhdisteetkemiallinen synteesi660Chemistrychemistry.chemical_elementkupariGeneral ChemistryMedicinal chemistryCopperCatalysischemistry.chemical_compoundkatalyysiIndolineddc:660orgaaniset yhdisteet
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Weak non-covalent interactions control the relative molecular orientation in the crystals of N-pentafluorobenzyl aniline derivatives

2010

The crystal structures of N-pentafluorobenzyl aniline derivatives are controlled by versatile aromatic–aromatic interactions between the electron deficient and electron rich aromatics; the parent compound (1) possesses an L shape while protonation (2–5) induces a conformational change resulting in a planar arrangement of molecules which pack in layer type structures with different molecular orientations.

chemistry.chemical_classificationConformational changeChemistryChemieProtonationGeneral ChemistryCrystal structureElectronCondensed Matter PhysicsCrystallographychemistry.chemical_compoundAnilineNon-covalent interactionsMoleculeGeneral Materials ScienceLayer (electronics)CrystEngComm
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The Halide Binding Behavior of 2-Carbamoyl-7-ureido-1H-indoles: Conformational Aspects

2009

Indole-based anion receptors with an carboxamide unit in 2- and an urea in 7-position were prepared and found to bind halides (as well as acetate and nitrate) in chloroform solutions at room temperature. Investigations of the binding behaviour show that the receptor is selective for chloride. Surprisingly, the truncated receptor 3 without the 2-carbamoyl substituent shows the highest affinity for Cl–. Thorough 1H, 13C and 15N NMR investigations indicate different binding modes for acetate, nitrate and halides to the receptor 2. The observation of a major conformational change of this receptor during the binding of the halide ions leads to an understanding of the relative binding affinities …

Indole testConformational changeHydrogen bondmedicine.drug_classStereochemistryOrganic ChemistryQuinolineSubstituentHalideCarboxamideNuclear magnetic resonance spectroscopychemistry.chemical_compoundchemistrymedicinePhysical and Theoretical ChemistryEuropean Journal of Organic Chemistry
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Cover Feature: Synthesis of Polycyclic Indolines by Utilizing a Reduction/Cyclization Cascade Reaction (Eur. J. Org. Chem. 45/2021)

2021

Reduction (complexity)Cascade reactionFeature synthesisComputational chemistryChemistryOrganic ChemistryCover (algebra)Physical and Theoretical ChemistryEuropean Journal of Organic Chemistry
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Anion-π Interaction: An Influential Force in Solid State Molecular Microstructures

2013

The crystal structures of simple triphenyl(pentafluorobenzyl)phosphonium salts provide crucial data on the influence of anion size on the molecular structure of bis(pentafluorobenzyl)phosphonium cations containing two adjacent electron-deficient moieties. Whereas the bromide anions interact by anion-π interaction in a 1:1 mode with the pentafluorobenzene unit Z-configured, the bulkier anions iodide, tetrafluoroborate, and hexafluorophosphate result in a 1:2 tweezer-like anti-configuration in which one anion interacts simultaneously with two pentafluorobenzene units. When spatial separation of the two electron-deficient rings match the size of the anion, anion-π interactions induce a conform…

chemistry.chemical_classificationTetrafluoroborateOrganic ChemistryInorganic chemistryIodideCrystal structureCrystal engineeringchemistry.chemical_compoundCrystallographychemistryBromideHexafluorophosphateMoleculePhosphoniumPhysical and Theoretical ChemistryEuropean Journal of Organic Chemistry
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Geometrically diverse anions in anion–π interactions

2011

The role of different anion geometries in anion–π interactions is discussed. The chemistry described herein is different to the interaction of spherical cations with aromatics. The influence of different geometries makes selective anion recognition more complicated than respective cation sensing. The present structural study reveals attractive interactions between pentafluorophenyl units and geometrically diverse anions (linear, trigonal planar, tetrahedral and octahedral). Due to the electrostatic nature of anion–π interactions, the anion geometry seems to be irrelevant. The size of the anion controls the relative orientation of the anion and the π system (e.g. in compounds 1–3). The dimer…

Trigonal planar molecular geometrychemistry.chemical_compoundCrystallographyBetainechemistryOctahedronInorganic chemistryChemieTetrahedronGeneral Chemistryta116IonSupramolecular Chemistry
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Formation of Triple‐Stranded Dinuclear Helicates with Dicatecholimine Ligands: The Influence of Steric Hindrance at the Spacer

2005

A series of new imine-bridged dicatechol ligands 3a–f-H4 with sterically demanding groups at the spacers are used for the formation of titanium(IV) complexes M4[(3)3Ti2]. All three ligands 3a–c-H4 form triple-stranded dinuclear helicates. When the bulky ligands 3a-H4 or 3c-H4 are used with potassium as the countercation, oligomeric or polymeric side products are also observed. The imine-bridged ligand 3e-H4 quantitatively forms helicates M4[(3e)3Ti2] and not a M4L6 tetrahedron as observed with Raymond’s analogous amide-bridged dicatechol ligand 3i-H4. NMR spectroscopic investigations at variable temperature show that ligand 3f-H4, which possesses a spiro fluorenyl group at the central unit …

Inorganic ChemistrySteric effectsChemistryLigandStereochemistryCentral unitSelf-assemblyEuropean Journal of Inorganic Chemistry
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Cation-translocation based isomerism offers a tool for the expansion of compressed helicates.

2021

A series of compressed M[Li313Ti2] (M = Li, Na, K, Rb, Cs) and expanded helicates M4[13Ti2] has been obtained. The helicates Li3[M13Ti2] or M4[13Ti2] with M = Na+, K+, Rb+, or Cs+ adopt the expanded structure in solution. By crystallization the compressed structures M[Li313Ti2] (M = Na, Rb) are obtained. This represents an example of cation-translocation based isomerism.

Inorganic ChemistryCrystallographylawChemistryCrystallizationlaw.inventionDalton transactions (Cambridge, England : 2003)
researchProduct

Anion–π Interactions in Salts with Polyhalide Anions: Trapping of I 4 2−

2010

The directionality of interaction of electron-deficient π systems with spherical anions (e.g,. halides) can be controlled by secondary effects like NH or CH hydrogen bonding. In this study a series of pentafluorophenyl-substituted salts with polyhalide anions is investigated. The compounds are obtained by aerobic oxidation of the corresponding halide upon crystallization. Solid-state structures reveal that in bromide 2, directing NH-anion interactions position the bromide ion in an η(1)-type fashion over but not in the center of the aromatic ring. The same directing forces are effective in corresponding tribromide salt 3. In the crystal, the bromide ion is paneled by four electron-deficient…

Organic ChemistryInorganic chemistryChemieSupramolecular chemistryHalideGeneral ChemistryCrystal structureCatalysischemistry.chemical_compoundCrystallographychemistryBromideHalogenPi interactionTriiodideTribromideChemistry – A European Journal
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Iron(III) chloride as mild catalyst for the dearomatizing cyclization of N-acylindoles

2020

A catalytic approach for the preparation of indolines by dearomatizing cyclization is presented. FeCl3 acts as a catalyst to afford tetracyclic 5a,6-dihydro-12H-indolo[2,1-b][1,3]benzoxazin-12-ones in good yields. The cyclization also proceeds with tosylamides forming C-N bonds in 53 % yield. peerReviewed

katalyytitkemialliset yhdisteetkatalyysiorgaaninen kemiaindoliini
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Expansion and Compression of a Helicate with Central Diol-Units as Stereocontrolling Moieties

2022

The dicatechol ester ligand 2-H4 forms the compressed helicate Li4[(2)3Ti2] which upon removal of the internally bound lithium cations expands. In the compressed form, the chiral diol units control the stereochemistry of the complex which is lost upon expansion of the system. peerReviewed

helicatelitiumstereochemistrykationitsupramolekulaarinen kemiamolekyylitnanotekniikkaself-assemblykompleksiyhdisteetmetallitmolecular switch
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The pentafluorophenyl group as π-acceptor for anions: a case study† †This manuscript is dedicated to Prof. Jean-Marie Lehn on the occasion of his 75t…

2014

A unique structural study investigates the variability of anion–π bonding in the solid state structures of pentafluorophenyl arenes. The hapticity concept is used as tool to describe the structural differences of various anion–π complexes.

ChemistryChemical Science
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Synthesis of Polycyclic Indolines utilizing a reduction/cyclization cascade reaction

2021

Subsequent reduction and dearomatizing cyclization reactions open up an entry into the synthesis of novel N-fused polycyclic indolines. The dearomatizing cyclization as key step of the sequence proceeds well with Cu(OTf)2 or TfOH as catalyst. At elevated temperature reduction of nitro-substituted precursors with iron under acidic conditions affords a broad variety of polycyclic indolines directly in a two-step cascade reaction in good to excellent yields. Using the developed protocol, the alkaloids Tryptanthrin and Phaitanthrin C have been prepared. peerReviewed

kemiallinen synteesicyclizationkatalyysinitrogen heterocyclescascade reactionshapetus-pelkistysreaktioorgaaniset yhdisteetacid catalysisdearomatization
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CCDC 967090: Experimental Crystal Structure Determination

2013

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersNNN'N'-tetramethyl-NN'-bis(pentafluorobenzyl)ethane-12-diaminium sulfate ethyl acetate methanol solvate trihydrateExperimental 3D Coordinates
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CCDC 1950786: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyhexakis(mu-benzyl 23-dioxybenzoate)-tri-lithium-di-titaniumCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 915608: Experimental Crystal Structure Determination

2013

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersPropane-13-diylbis((pentafluorobenzyl)(diphenyl)phosphonium) bis(hexafluorophosphate) NN-dimethylformamide unknown solvateExperimental 3D Coordinates
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CCDC 1977489: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters8-methyl-5a6-dihydro-12H-indolo[21-b][13]benzoxazin-12-oneExperimental 3D Coordinates
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CCDC 1005283: Experimental Crystal Structure Determination

2014

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Space GroupCrystallography13-bis(Pentafluorobenzyl)-1H-benzimidazol-3-ium bromide monohydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 967091: Experimental Crystal Structure Determination

2013

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Space GroupCrystallographyNNN'N'-tetramethyl-NN'-bis(pentafluorobenzyl)propane-13-diaminium dibromide monohydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 955438: Experimental Crystal Structure Determination

2014

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Space GroupCrystallographyCrystal SystemCrystal StructureN-(2'3'4'5'6'-Pentafluorobiphenyl-2-yl)acetamideCell ParametersExperimental 3D Coordinates
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CCDC 1040204: Experimental Crystal Structure Determination

2016

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters14-dibenzyl-14-diazoniabicyclo[2.2.2]octane dibromide methanol solvate monohydrateExperimental 3D Coordinates
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CCDC 1005269: Experimental Crystal Structure Determination

2014

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN-(2356-Tetrafluorobenzyl)triethylammonium bromideExperimental 3D Coordinates
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CCDC 2067949: Experimental Crystal Structure Determination

2022

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Space GroupCrystallographyCrystal System5a-methyl-5a6-dihydroindolo[21-b]quinazolin-12(5H)-oneCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1919187: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersdi-lithium tris[but-2-yn-1-yl 23-dioxybenzoato]-titanium methanol solvate hemihydrateExperimental 3D Coordinates
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CCDC 1846187: Experimental Crystal Structure Determination

2019

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN'1N'2-bis(1-methylpiperidin-4-ylidene)ethanedihydrazideExperimental 3D Coordinates
researchProduct

CCDC 1453996: Experimental Crystal Structure Determination

2016

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Space GroupCrystallographybis(mu-N'1-((pyridin-2-yl)methylene)-N'4-((pyridin-2-yl)methylene)succinohydrazide)-hexa-aqua-di-terbium(iii) hexachloride unknown solvate heptahydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1005280: Experimental Crystal Structure Determination

2014

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters4-Methyl-4-(pentafluorobenzyl)thiomorpholin-4-ium bromide chloroform ethanol solvate hydrateExperimental 3D Coordinates
researchProduct

CCDC 1005278: Experimental Crystal Structure Determination

2014

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Space GroupCrystallography14-Dimethyl-1-(pentafluorobenzyl)piperazin-1-ium bromideCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 936269: Experimental Crystal Structure Determination

2014

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Space GroupCrystallography1-(Pentafluorobenzyl)pyridinium hexafluorophosphateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1995537: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN1N5-bis{[35-bis(trifluoromethyl)phenyl]methyl}naphthalene-15-diamineExperimental 3D Coordinates
researchProduct

CCDC 936267: Experimental Crystal Structure Determination

2014

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Space GroupCrystallographyCrystal System1-(Pentafluorobenzyl)pyridinium triiodideCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1005287: Experimental Crystal Structure Determination

2014

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Space GroupCrystallography3-Amino-1-(pentafluorobenzyl)pyridinium bromideCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1014201: Experimental Crystal Structure Determination

2014

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Space GroupCrystallographyCrystal System1-((1345678-heptafluoro-2-naphthyl)methyl)-4-aza-1-azoniabicyclo[2.2.2]octane bromide methanol solvateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 915600: Experimental Crystal Structure Determination

2013

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(Pentafluorobenzyl)(triphenyl)phosphonium tetrafluoroborateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 915601: Experimental Crystal Structure Determination

2013

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(Pentafluorobenzyl)(triphenyl)phosphonium hexafluorophosphateExperimental 3D Coordinates
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CCDC 2069786: Experimental Crystal Structure Determination

2021

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tri-lithium sodium tris(mu-33'-(118-dioxo-258111417-hexaoxaoctadecane-118-diyl)di[benzene-12-bis(olato)])-di-titanium(iv) NN-dimethylformamide solvate dihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1846185: Experimental Crystal Structure Determination

2019

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters811-dimethyl-781112-tetraazaspiro[5.6]dodecane-910-dioneExperimental 3D Coordinates
researchProduct

CCDC 1539540: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyCrystal SystemCrystal Structurecatena-[hexakis(mu-3-[(cyclobutyloxy)carbonyl]benzene-12-bis(olato))-bis(methanol)-tetra-lithium-di-titanium diethyl ether solvate]Cell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1917460: Experimental Crystal Structure Determination

2020

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di-lithium tris(246-trimethylphenylmethyl 23-dioxybenzoate)-titaniumSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 915607: Experimental Crystal Structure Determination

2013

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersPropane-13-diylbis((pentafluorobenzyl)(diphenyl)phosphonium) bis(hexafluorophosphate) NN-dimethylformamide unknown solvateExperimental 3D Coordinates
researchProduct

CCDC 1040206: Experimental Crystal Structure Determination

2016

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters1-(35-bis(trifluoromethyl)benzyl)-4-aza-1-azoniabicyclo[2.2.2]octane bromideExperimental 3D Coordinates
researchProduct

CCDC 1977492: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyCrystal System13415b-tetrahydro-2H10H-[13]benzoxazino[23-k]carbazol-10-oneCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1407855: Experimental Crystal Structure Determination

2015

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Space GroupCrystallographycatena-[hexakis(mu-Methyl 23-dioxido-4-hydroxybenzoate)-aqua-methanol-tetra-lithium-di-titanium diethyl ether methanol solvate]Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1977495: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters[2-(2-hydroxy-5-methylphenyl)-23-dihydro-1H-indol-1-yl](phenyl)methanoneExperimental 3D Coordinates
researchProduct

CCDC 1977494: Experimental Crystal Structure Determination

2020

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Space GroupCrystallography5-(4-methylbenzene-1-sulfonyl)-5a6-dihydroindolo[21-b]quinazolin-12(5H)-oneCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1040201: Experimental Crystal Structure Determination

2016

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Space GroupCrystallography1-(35-bis(trifluoromethyl)benzyl)-2-carboxypyrrolidinium chlorideCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2067947: Experimental Crystal Structure Determination

2022

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Space GroupCrystallographyCrystal System8-methoxy-5-(4-methylbenzene-1-sulfonyl)-5a6-dihydroindolo[21-b]quinazolin-12(5H)-oneCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1005272: Experimental Crystal Structure Determination

2014

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N-Benzyl-N-(2356-tetrafluorobenzyl)dimethylammonium bromideSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1995533: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN-[35-bis(trifluoromethyl)benzoyl]-35-bis(trifluoromethyl)benzamide dimethyl sulfoxide solvateExperimental 3D Coordinates
researchProduct

CCDC 1995536: Experimental Crystal Structure Determination

2020

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8-{[35-bis(trifluoromethyl)phenyl]methoxy}-2-methylquinolin-1-ium chloride monohydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1995534: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyN-[(pentafluorophenyl)methyl]-35-bis(trifluoromethyl)benzamideCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2067946: Experimental Crystal Structure Determination

2022

Related Article: Jingyu Zhang, Wei Xia, Saskia Huda, Jas S. Ward, Kari Rissanen, Markus Albrecht|2021|Adv.Synth.Catal.|363|3121|doi:10.1002/adsc.202100290

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates5-(4-nitrobenzene-1-sulfonyl)-5a6-dihydroindolo[21-b]quinazolin-12(5H)-one
researchProduct

CCDC 1977488: Experimental Crystal Structure Determination

2020

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Space GroupCrystallography3-chloro-5a6-dihydro-12H-indolo[21-b][13]benzoxazin-12-oneCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1005277: Experimental Crystal Structure Determination

2014

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N-(345-Trifluorobenzyl)triethylammonium bromide monohydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2067943: Experimental Crystal Structure Determination

2022

Related Article: Jingyu Zhang, Wei Xia, Saskia Huda, Jas S. Ward, Kari Rissanen, Markus Albrecht|2021|Adv.Synth.Catal.|363|3121|doi:10.1002/adsc.202100290

Space GroupCrystallographyCrystal System5-(4-fluorobenzene-1-sulfonyl)-5a6-dihydroindolo[21-b]quinazolin-12(5H)-oneCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1539541: Experimental Crystal Structure Determination

2020

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatesoxonium dodecakis(mu-cyclopentyl 23-dioxybenzoate)-bis(methanol)-hepta-lithium-tetra-titanium diethyl ether methanol solvate hydrate
researchProduct

CCDC 967092: Experimental Crystal Structure Determination

2013

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates1-benzyl-4-(pentafluorobenzyl)-14-diazoniabicyclo[2.2.2]octane dibromide ethanol solvate
researchProduct

CCDC 915606: Experimental Crystal Structure Determination

2013

Related Article: Michael Giese, Markus Albrecht, Arto Valkonen, Kari Rissanen|2013|Eur.J.Org.Chem.|2013|3247|doi:10.1002/ejoc.201201704

Space GroupCrystallographyPropane-13-diylbis((pentafluorobenzyl)(diphenyl)phosphonium) bis(tetrafluoroborate) NN-dimethylformamide solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 915603: Experimental Crystal Structure Determination

2013

Related Article: Michael Giese, Markus Albrecht, Arto Valkonen, Kari Rissanen|2013|Eur.J.Org.Chem.|2013|3247|doi:10.1002/ejoc.201201704

Space GroupCrystallographyCrystal SystemEthane-12-diylbis((pentafluorobenzyl)(diphenyl)phosphonium) dibromide NN-dimethylformamide solvateCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2067948: Experimental Crystal Structure Determination

2022

Related Article: Jingyu Zhang, Wei Xia, Saskia Huda, Jas S. Ward, Kari Rissanen, Markus Albrecht|2021|Adv.Synth.Catal.|363|3121|doi:10.1002/adsc.202100290

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters5a-methyl-5-(4-methylbenzene-1-sulfonyl)-5a6-dihydroindolo[21-b]quinazolin-12(5H)-oneExperimental 3D Coordinates
researchProduct

CCDC 967128: Experimental Crystal Structure Determination

2013

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Space GroupCrystallographyCrystal Systempentakis(8-((pentafluorobenzyl)oxy)quinolin-1-ium) bis(iodine) tris(tri-iodide) octaiodideCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1453997: Experimental Crystal Structure Determination

2016

Related Article: Jashobanta Sahoo, Rajendran Arunachalam, Palani S. Subramanian, Eringathodi Suresh, Arto Valkonen, Kari Rissanen, Markus Albrecht|2016|Angew.Chem.,Int.Ed.|55|9625|doi:10.1002/anie.201604093

Space GroupCrystallographybis(mu-N'1-((pyridin-2-yl)methylene)-N'4-((pyridin-2-yl)methylene)succinohydrazide)-bis(nitrato)-tetra-aqua-di-europium(iii) tetranitrate tetrahydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1040203: Experimental Crystal Structure Determination

2016

Related Article: Markus Albrecht, Yi Hai, Okan Köksal, Gerhard Raabe, Fangfang Pan, Arto Valkonen and Kari Rissanen|2016|Chem.-Eur.J.|22|6596|doi:10.1002/chem.201600249

Space GroupCrystallographytetrabutylammonium bromide bis(35-bis(trifluoromethyl)benzamide)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1977487: Experimental Crystal Structure Determination

2020

Related Article: Jingyu Zhang, Jing Li, Jas S. Ward, Khai-Nghi Truong, Kari Rissanen, Markus Albrecht|2020|J.Org.Chem.|85|12160|doi:10.1021/acs.joc.0c01373

Space GroupCrystallography2-methyl-5a6-dihydro-12H-indolo[21-b][13]benzoxazin-12-oneCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 967093: Experimental Crystal Structure Determination

2013

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Space GroupCrystallography147-tris(pentafluorobenzyl)-147-triazonaneCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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2015

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2013

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2021

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterstri-lithium rubidium tris(mu-33'-(118-dioxo-258111417-hexaoxaoctadecane-118-diyl)di[benzene-12-bis(olato)])-di-titanium(iv) NN-dimethylformamide solvate dihydrateExperimental 3D Coordinates
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CCDC 1013128: Experimental Crystal Structure Determination

2015

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN-benzyl-8-((1H-indol-7-ylcarbamothioyl)amino)-4-isobutoxyquinoline-2-carboxamide dimethyl sulfoxide solvateExperimental 3D Coordinates
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CCDC 967129: Experimental Crystal Structure Determination

2013

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Space GroupCrystallography8-((pentafluorobenzyl)oxy)quinolin-1-ium 8-((pentafluorobenzyl)oxy)quinoline dibromoiodide unknown solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1995535: Experimental Crystal Structure Determination

2020

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CCDC 936265: Experimental Crystal Structure Determination

2014

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CCDC 1005267: Experimental Crystal Structure Determination

2014

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CCDC 1036896: Experimental Crystal Structure Determination

2015

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CCDC 1438663: Experimental Crystal Structure Determination

2016

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tri-lithium potassium bis(tris(3-(((hexa-24-dien-1-yl)oxy)carbonyl)benzene-12-diolato)-titanium) dihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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2014

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2015

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CCDC 1040202: Experimental Crystal Structure Determination

2016

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN-(35-bis(trifluoromethyl)benzyl)-3-(((35-bis(trifluoromethyl)benzyl)oxy)carbonyl)anilinium chlorideExperimental 3D Coordinates
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CCDC 967097: Experimental Crystal Structure Determination

2013

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CCDC 967088: Experimental Crystal Structure Determination

2013

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2014

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CCDC 967089: Experimental Crystal Structure Determination

2013

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Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D CoordinatesNNN'N'-tetramethyl-NN'-bis(pentafluorobenzyl)ethane-12-diaminium bromide chloride dimethyl sulfoxide solvate
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2013

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2020

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2016

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2014

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2020

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2014

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2016

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CCDC 1977491: Experimental Crystal Structure Determination

2020

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CCDC 1014200: Experimental Crystal Structure Determination

2014

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2021

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2020

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2015

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2014

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2013

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2014

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2020

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CCDC 1005273: Experimental Crystal Structure Determination

2014

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CCDC 1040205: Experimental Crystal Structure Determination

2016

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CCDC 1005276: Experimental Crystal Structure Determination

2014

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CCDC 2067944: Experimental Crystal Structure Determination

2022

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CCDC 1001536: Experimental Crystal Structure Determination

2014

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CCDC 967094: Experimental Crystal Structure Determination

2013

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CCDC 1919186: Experimental Crystal Structure Determination

2020

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researchProduct

CCDC 1036894: Experimental Crystal Structure Determination

2015

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CCDC 1005289: Experimental Crystal Structure Determination

2014

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CCDC 1005270: Experimental Crystal Structure Determination

2014

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researchProduct

CCDC 1005279: Experimental Crystal Structure Determination

2014

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researchProduct

CCDC 915602: Experimental Crystal Structure Determination

2013

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CCDC 1846186: Experimental Crystal Structure Determination

2019

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researchProduct

CCDC 915604: Experimental Crystal Structure Determination

2013

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CCDC 1977490: Experimental Crystal Structure Determination

2020

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Space GroupCrystallography9-methyl-5a6-dihydro-12H-indolo[21-b][13]benzoxazin-12-oneCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1005285: Experimental Crystal Structure Determination

2014

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Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters12-bis((Pentafluorobenzyl)dimethylammonio)ethane dibromide methanol solvateExperimental 3D Coordinates
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CCDC 1005284: Experimental Crystal Structure Determination

2014

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researchProduct

CCDC 1005282: Experimental Crystal Structure Determination

2014

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researchProduct

CCDC 1539539: Experimental Crystal Structure Determination

2020

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researchProduct

CCDC 1575105: Experimental Crystal Structure Determination

2018

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CCDC 1005271: Experimental Crystal Structure Determination

2014

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CCDC 1917415: Experimental Crystal Structure Determination

2020

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researchProduct

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2021

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researchProduct

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2020

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Space GroupCrystallographysodium tris(mu-33'-(118-dioxo-258111417-hexaoxaoctadecane-118-diyl)di[benzene-12-bis(olate)])-tri-lithium-di-titanium NN-dimethylformamide solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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