0000000000025087

AUTHOR

Niklas Struch

showing 32 related works from this author

Frontispiece: An Octanuclear Metallosupramolecular Cage Designed To Exhibit Spin-Crossover Behavior

2017

CrystallographyChemistryStereochemistrySpin crossoverGeneral ChemistrySelf-assemblyCageCatalysisAngewandte Chemie International Edition
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Electron-Deficient Pyridylimines: Versatile Building Blocks for Functional Metallosupramolecular Chemistry

2017

Metallosupramolecular systems heavily rely on the correct choice of ligands to obtain materials with desired properties. Engaging this problem, we present three ligand systems and six of their mono- and dinuclear complexes, based on the subcomponent self-assembly approach using electron-deficient pyridylcarbaldehyde building blocks. The properties are examined in solution by NMR and UV-vis spectroscopy and CV measurements as well as in solid state by single crystal X-ray diffraction analysis. Ultimately, the choice of ligands allows for fine-tuning of the electronic properties of the metal centers, complex-to-complex transformations, as well as establishing distinct anion-π-interaction moti…

Diffractionligands010405 organic chemistryLigandChemistryelectronsSolid-stateElectronchemistry010402 general chemistry01 natural sciences0104 chemical sciencesInorganic ChemistryMetalCrystallographyironvisual_artvisual_art.visual_art_mediumPhysical and Theoretical ChemistrySpectroscopyta116Single crystalElectronic propertiesInorganic Chemistry
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Ein achtkerniger metallosupramolekularer Würfel mit Spin-Crossover-Eigenschaften

2017

Materials science010405 organic chemistryGeneral Medicine010402 general chemistry01 natural sciences0104 chemical sciencesAngewandte Chemie
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Self-Sorting Effects in the Self-Assembly of Metallosupramolecular Rhombi from Chiral BINOL-Derived Bis(pyridine) Ligands

2013

Four BINOL-based bis(4-pyridyl) ligands were synthesised in enantiopure and racemic form. These ligands form metallosupramolecular [(dppp)2M2L2] rhombi with cis-protected [(dppp)Pd]2+ and [(dppp)Pt]2+ ions. In principle, racemic ligands can self-assemble into three stereoisomeric rhombi. The degree of self-sorting in the self-assembly process crucially depends on the substitution pattern and the resulting bend angle of the V-shaped ligands as well as the degree of steric crowding within the assembly when racemic ligands are used. Thus, these processes either lead to homochiral assemblies in a narcissistic self-recognition manner, to heterochiral assemblies in a social self-discriminating ma…

Steric effectsAtropisomerEnantiopure drugChemistryStereochemistryOrganic ChemistrySupramolecular chemistrychemistry.chemical_elementSelf-assemblyNuclear magnetic resonance spectroscopyPhysical and Theoretical ChemistryPlatinumPalladiumEuropean Journal of Organic Chemistry
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Enantiomerically pure trinuclear helicates via diastereoselective self-assembly and characterization of their redox chemistry.

2014

A tris(bipyridine) ligand 1 with two BINOL (BINOL = 2, 2′-dihydroxy-1, 1′-binaphthyl) groups has been prepared in two enantiomerically pure forms. This ligand undergoes completely diastereoselective self-assembly into D2-symmeteric double-stranded trinuclear helicates upon coordination to copper(I) and silver(I) ions and to D3-symmetric triple-stranded trinuclear helicates upon coordination to copper(II), zinc(II), and iron(II) ions as demonstrated by mass spectrometry, NMR and CD spectroscopy in combination with quantum chemical calculations and X-ray diffraction analysis. According to the calculations, the single diastereomers that are formed during the self-assembly process are strongly …

Circular dichroismStereochemistryLigandDiastereomerchemistry.chemical_elementGeneral ChemistryZincBiochemistryCopperRedoxCatalysisCrystallographyBipyridinechemistry.chemical_compoundColloid and Surface Chemistrychemistrytrinuclear helicates; diastereoselective self-assembly; X-ray diffraction; redox chemistrySelf-assemblyta116Journal of the American Chemical Society
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Electron-deficient trifluoromethyl-substituted sub-components affect the properties of M4L4 tetrahedral cages

2017

Two supramolecular tetrahedral cages based on a new electron-deficient trifluoromethyl-substituted pyridylimine ligand are synthesised by sub-component self-assembly. Their structures are characterised by NMR und UV-Vis spectroscopy, high-resolution mass spectrometry and single crystal X-ray diffraction. The iron(II) complex shows host–guest chemistry, complex-to-complex transformations and novel electronic properties.

DiffractionTrifluoromethyl010405 organic chemistryLigandSupramolecular chemistry010402 general chemistryMass spectrometry01 natural sciences0104 chemical sciencesInorganic ChemistryCrystallographychemistry.chemical_compoundchemistryelectron-deficient trifluoromethyl-substituted sub-componentsTetrahedronSpectroscopyta116Single crystalDalton Transactions
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Influencing the Self‐Sorting Behavior of [2.2]Paracyclophane‐Based Ligands by Introducing Isostructural Binding Motifs

2020

Abstract Two isostructural ligands with either nitrile (Lnit) or isonitrile (Liso) moieties directly connected to a [2.2]paracyclophane backbone with pseudo‐meta substitution pattern have been synthesized. The ligand itself (Lnit) or its precursors (Liso) were resolved by HPLC on a chiral stationary phase and the absolute configuration of the isolated enantiomers was assigned by XRD analysis and/or by comparison of quantum‐chemical simulated and experimental electronic circular dichroism (ECD) spectra. Surprisingly, the resulting metallosupramolecular aggregates formed in solution upon coordination of [(dppp)Pd(OTf)2] differ in their composition: whereas Lnit forms dinuclear complexes, Liso…

Circular dichroismNitrileSupramolecular chemistry010402 general chemistry01 natural sciencesCatalysisself-sortingsupramolecular chemistrychemistry.chemical_compoundIsostructuralFull Paper010405 organic chemistryLigandOrganic ChemistryAbsolute configurationGeneral ChemistryNuclear magnetic resonance spectroscopyself-assemblyFull Papers0104 chemical sciencesCrystallographychemistrynitrile ligandsEnantiomerSupramolecular Chemistry | Hot Paperisonitrile ligandsChemistry (Weinheim an Der Bergstrasse, Germany)
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An Octanuclear Metallosupramolecular Cage Designed To Exhibit Spin-Crossover Behavior.

2018

By employing the subcomponent self-assembly approach utilizing 5,10,15,20-tetrakis(4-aminophenyl)porphyrin or its zinc(II) complex, 1H-4-imidazolecarbaldehyde, and either zinc(II) or iron(II) salts, we were able to prepare O-symmetric cages having a confined volume of ca. 1300 Å3 . The use of iron(II) salts yielded coordination cages in the high-spin state at room temperature, manifesting spin-crossover in solution at low temperatures, whereas corresponding zinc(II) salts led to the corresponding diamagnetic analogues. The new cages were characterized by synchrotron X-ray crystallography, high-resolution mass spectrometry, and NMR, Mössbauer, IR, and UV/Vis spectroscopy. The cage structures…

Stereochemistrychemistry.chemical_elementZinc010402 general chemistryMass spectrometry01 natural sciencesCatalysislaw.inventionhost-guest systemschemistry.chemical_compoundspin crossoverlawSpin crossoverMössbauer spectroscopySpectroscopyta116010405 organic chemistryChemistryiron(II) complexesGeneral Chemistryself-assemblymetallosupramolecular chemistryPorphyrinSynchrotron0104 chemical sciencesCrystallographyDiamagnetism
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Stepwise Construction of Heterobimetallic Cages by an Extended Molecular Library Approach.

2017

Two novel heterobimetallic complexes, a trigonal-bipyramidal and a cubic one, have been synthesized and characterized using the same C3-symmetric metalloligand, prepared by a simple subcomponent self-assembly strategy. Adopting the molecular library approach, we chose a mononuclear, preorganized iron(II) complex as the metalloligand capable of self-assembly into a trigonal-bipyramidal or a cubic aggregate upon coordination to cis-protected C2-symmetric palladium(II) or unprotected tetravalent palladium(II) ions, respectively. The trigonal-bipyramidal complex was characterized by NMR and UV–vis spectroscopy, electrospray ionization mass spectrometry (ESI-MS), and single-crystal X-ray diffrac…

010405 organic chemistryChemistrytrigonal-bipyramidal and cubic heterobimetallic cagesElectrospray ionizationchemistry.chemical_element010402 general chemistry01 natural sciencesCombinatorial chemistry0104 chemical sciencesIonInorganic ChemistryCrystallographyPhysical and Theoretical ChemistrySpectroscopyta116extended molecular library approachPalladiumInorganic chemistry
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Electron-deficient trifluoromethyl-substituted sub-components affect the properties of M4L4 tetrahedral cages

2017

Two supramolecular tetrahedral cages based on a new electron-deficient trifluoromethyl-substituted pyridylimine ligand are synthesised by sub-component self-assembly. Their structures are characterised by NMR und UV-Vis spectroscopy, high-resolution mass spectrometry and single crystal X-ray diffraction. The iron(II) complex shows host–guest chemistry, complex-to-complex transformations and novel electronic properties. peerReviewed

electron-deficient trifluoromethyl-substituted sub-components
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Influencing the self‐sorting behavior of [2.2]paracyclophane based ligands by introducing isostructural binding motifs

2020

Two isostructural ligands with either nitrile ( L nit ) or isonitrile ( L iso ) moieties directly connected to a [2.2]paracyclophane backbone with pseudo‐meta substitution pattern have been synthesized. The ligand itself ( L nit ) or its precursors ( L iso ) were resolved via HPLC on a chiral stationary phase and the absolute configuration of the isolated enantiomers was assigned by XRD analysis and/or by comparison of quantum‐chemical simulated and experimental ECD‐spectra. Surprisingly, the resulting metallosupramolecular aggregates formed in solution upon coordination of [(dppp)Pd(OTf) 2 ] differ in their composition: whereas L nit forms dinuclear complexes L iso exclusively forms trinuc…

supramolekulaarinen kemianitrile ligandsself-assemblyliganditsupramolecular chemistryisonitrile ligandsself-sorting
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CCDC 1573413: Experimental Crystal Structure Determination

2017

Related Article: Niklas Struch, Filip Topic, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2018|Inorg.Chem.|57|241|doi:10.1021/acs.inorgchem.7b02412

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterstris(mu-NN'-[methylenebis(41-phenylene)]bis[1-(5-fluoropyridin-2-yl)methanimine])-di-iron tetrakis(tetrafluoroborate) acetonitrile solvateExperimental 3D Coordinates
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CCDC 1451726: Experimental Crystal Structure Determination

2017

Related Article: Niklas Struch, Christoph Bannwarth, Tanya K. Ronson, Yvonne Lorenz, Bernd Mienert, Norbert Wagner, Marianne Engeser, Eckhard Bill, Rakesh Puttreddy, Kari Rissanen, Johannes Beck, Stefan Grimme, Jonathan R. Nitschke, Arne Lützen|2017|Angew.Chem.,Int.Ed.|56|4930|doi:10.1002/anie.201700832

Space GroupCrystallographyCrystal SystemCrystal Structurehexakis(mu-5101520-tetrakis(4-(imidazol-4-ylmethyleneamino)phenyl)porphyrinato)-acetonitrile-diaqua-octa-iron-hexa-zinc unknown anion acetonitrile unknown solvate trihydrateCell ParametersExperimental 3D Coordinates
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CCDC 945021: Experimental Crystal Structure Determination

2013

Related Article: Christoph Gütz, Rainer Hovorka, Caroline Stobe, Niklas Struch, Filip Topić, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2014|Eur.J.Org.Chem.|2014|206|doi:10.1002/ejoc.201301314

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(mu2-(44'-(22'-bis(methoxymethoxy)-11'-binaphthalene-33'-diyl)bispyridine))-bis(propane-13-diylbis(diphenylphosphine))-di-palladium(ii) tetrakis(trifluoromethanesulfonate) dichloromethane tetrahydropyran solvateExperimental 3D Coordinates
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CCDC 1573412: Experimental Crystal Structure Determination

2017

Related Article: Niklas Struch, Filip Topic, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2018|Inorg.Chem.|57|241|doi:10.1021/acs.inorgchem.7b02412

Space GroupCrystallography(NNN-tris(2-{[(5-fluoropyridin-2-yl)methylidene]amino}ethyl)amine)-iron bis(tetrafluoroborate)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1573312: Experimental Crystal Structure Determination

2017

Related Article: Niklas Struch, Filip Topic, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2018|Inorg.Chem.|57|241|doi:10.1021/acs.inorgchem.7b02412

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(NNN-tris[2-({[5-(trifluoromethyl)pyridin-2-yl]methylidene}amino)ethyl]amine)-iron bis(tetrafluoroborate) acetonitrile solvateExperimental 3D Coordinates
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CCDC 1824417: Experimental Crystal Structure Determination

2020

Related Article: Lucia Volbach, Niklas Struch, Fabian Bohle, Filip Topić, Gregor Schnakenburg, Andreas Schneider, Kari Rissanen, Stefan Grimme, Arne Lützen|2020|Chem.-Eur.J.|26|3335|doi:10.1002/chem.201905070

catena-[(mu-[tricyclo[8.2.2.247]hexadeca-1(12)46101315-hexaene-512-diyl]bis(isocyano))-((propane-13-diyl)bis(diphenylphosphane))-palladium bis(trifluoromethanesulfonate) acetonitrile solvate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1824416: Experimental Crystal Structure Determination

2020

Related Article: Lucia Volbach, Niklas Struch, Fabian Bohle, Filip Topić, Gregor Schnakenburg, Andreas Schneider, Kari Rissanen, Stefan Grimme, Arne Lützen|2020|Chem.-Eur.J.|26|3335|doi:10.1002/chem.201905070

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterscatena-[[(propane-13-diyl)bis(diphenylphosphine)]-[mu-tricyclo[8.2.2.247]hexadeca-1(12)46101315-hexaene-512-dicarbonitrile]-palladium bis(trifluoromethanesulfonate)]Experimental 3D Coordinates
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CCDC 1955599: Experimental Crystal Structure Determination

2020

Related Article: Lucia Volbach, Niklas Struch, Fabian Bohle, Filip Topić, Gregor Schnakenburg, Andreas Schneider, Kari Rissanen, Stefan Grimme, Arne Lützen|2020|Chem.-Eur.J.|26|3335|doi:10.1002/chem.201905070

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterstricyclo[8.2.2.247]hexadeca-1(12)46101315-hexaene-512-dicarbonitrileExperimental 3D Coordinates
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CCDC 945019: Experimental Crystal Structure Determination

2013

Related Article: Christoph Gütz, Rainer Hovorka, Caroline Stobe, Niklas Struch, Filip Topić, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2014|Eur.J.Org.Chem.|2014|206|doi:10.1002/ejoc.201301314

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(mu2-44'-((22'-bis(methoxymethoxy)-11'-binaphthalene-33'-diyl)diethyne-21-diyl)dipyridine)-bis(propane-13-diylbis(diphenylphosphine))-di-platinum(ii) tetrakis(trifluoromethanesulfonate) tetrahydro-2H-pyran unknown solvateExperimental 3D Coordinates
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CCDC 1573313: Experimental Crystal Structure Determination

2017

Related Article: Niklas Struch, Filip Topic, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2018|Inorg.Chem.|57|241|doi:10.1021/acs.inorgchem.7b02412

tris(mu-NN'-[methylenebis(41-phenylene)]bis{1-[5-(trifluoromethyl)pyridin-2-yl]methanimine})-di-iron tetrakis(tetrafluoroborate) acetonitrile solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1550913: Experimental Crystal Structure Determination

2017

Related Article: Matthias Hardy, Niklas Struch, Filip Topic, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2018|Inorg.Chem.|57|3507|doi:10.1021/acs.inorgchem.7b02516

Space GroupCrystallographyCrystal SystemCrystal Structure(NNN-tris(2-((((34'-bipyridin)-6-yl)methylidene)amino)ethyl)amine)-iron bis(tetrafluoroborate)Cell ParametersExperimental 3D Coordinates
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CCDC 1573410: Experimental Crystal Structure Determination

2017

Related Article: Niklas Struch, Filip Topic, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2018|Inorg.Chem.|57|241|doi:10.1021/acs.inorgchem.7b02412

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(NNN-tris(2-{[(pyridin-2-yl)methylidene]amino}ethyl)amine)-iron bis(tetrafluoroborate)Experimental 3D Coordinates
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CCDC 1003004: Experimental Crystal Structure Determination

2014

Related Article: Christoph Gütz , Rainer Hovorka , Niklas Struch , Jens Bunzen , Georg Meyer-Eppler , Zheng-Wang Qu , Stefan Grimme , Filip Topić, Kari Rissanen, Mario Cetina, Marianne Engeser, Arne Lützen|2014|J.Am.Chem.Soc.|136|11830|doi:10.1021/ja506327c

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterstris(mu-55'-bis((3'-(22'-bipyridin-5-ylethynyl)-22'-bis(methoxymethoxy)-11'-binaphthalen-3-yl)ethynyl)-22'-bipyridine)-tri-copper hexakis(tetrafluoroborate) acetonitrile tetrahydropyran solvateExperimental 3D Coordinates
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CCDC 1573414: Experimental Crystal Structure Determination

2017

Related Article: Niklas Struch, Filip Topic, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2018|Inorg.Chem.|57|241|doi:10.1021/acs.inorgchem.7b02412

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterstris(mu-NN'-[methylenebis(41-phenylene)]bis[1-(5-nitropyridin-2-yl)methanimine])-di-iron tetrakis(tetrafluoroborate) acetonitrile solvateExperimental 3D Coordinates
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CCDC 941094: Experimental Crystal Structure Determination

2013

Related Article: Christoph Gütz, Rainer Hovorka, Caroline Stobe, Niklas Struch, Filip Topić, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2014|Eur.J.Org.Chem.|2014|206|doi:10.1002/ejoc.201301314

Space GroupCrystallography(mu2-(M)-44'-((22'-bis(Methoxymethoxy)-11'-binaphthalene-66'-diyl)diethyne-21-diyl)dipyridine)-(mu2-(P)-44'-((22'-bis(methoxymethoxy)-11'-binaphthalene-66'-diyl)diethyne-21-diyl)dipyridine)-bis(13-bis(diphenylphosphino)propane)-di-platinum(ii) tetrakis(trifluoromethanesulfonate) unknown solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 945020: Experimental Crystal Structure Determination

2013

Related Article: Christoph Gütz, Rainer Hovorka, Caroline Stobe, Niklas Struch, Filip Topić, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2014|Eur.J.Org.Chem.|2014|206|doi:10.1002/ejoc.201301314

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(mu2-44'-((22'-bis(methoxymethoxy)-11'-binaphthalene-33'-diyl)diethyne-21-diyl)dipyridine)-bis(propane-13-diylbis(diphenylphosphine))-di-palladium(ii) tetrakis(trifluoromethanesulfonate) tetrahydro-2H-pyran unknown solvateExperimental 3D Coordinates
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CCDC 941095: Experimental Crystal Structure Determination

2013

Related Article: Christoph Gütz, Rainer Hovorka, Caroline Stobe, Niklas Struch, Filip Topić, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2014|Eur.J.Org.Chem.|2014|206|doi:10.1002/ejoc.201301314

(mu2-(M)-44'-((22'-bis(Methoxymethoxy)-11'-binaphthalene-66'-diyl)diethyne-21-diyl)dipyridine)-(mu2-(P)-44'-((22'-bis(methoxymethoxy)-11'-binaphthalene-66'-diyl)diethyne-21-diyl)dipyridine)-bis(13-bis(diphenylphosphino)propane)-di-palladium(ii) tetrakis(trifluoromethanesulfonate) tetrahydropyran solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1955601: Experimental Crystal Structure Determination

2020

Related Article: Lucia Volbach, Niklas Struch, Fabian Bohle, Filip Topić, Gregor Schnakenburg, Andreas Schneider, Kari Rissanen, Stefan Grimme, Arne Lützen|2020|Chem.-Eur.J.|26|3335|doi:10.1002/chem.201905070

catena-[[(propane-13-diyl)bis(diphenylphosphine)]-[mu-tricyclo[8.2.2.247]hexadeca-1(12)46101315-hexaene-512-dicarbonitrile]-palladiumbis( trifluoromethanesulfonate) dichloromethane solvate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1575238: Experimental Crystal Structure Determination

2017

Related Article: Matthias Hardy, Niklas Struch, Filip Topic, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2018|Inorg.Chem.|57|3507|doi:10.1021/acs.inorgchem.7b02516

bis(mu-NNN-tris(2-((((34'-bipyridin)-6-yl)methylidene)amino)ethyl)amine)-tris((propane-13-diyl)bis(diphenylphosphine))-di-iron-tri-palladium tetrafluoroborate trifluoromethanesulfonate acetonitrile solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1573411: Experimental Crystal Structure Determination

2017

Related Article: Niklas Struch, Filip Topic, Gregor Schnakenburg, Kari Rissanen, Arne Lützen|2018|Inorg.Chem.|57|241|doi:10.1021/acs.inorgchem.7b02412

Space GroupCrystallographyCrystal System(NNN-tris(2-{[(5-nitropyridin-2-yl)methylidene]amino}ethyl)amine)-iron bis(tetrafluoroborate) acetonitrile solvateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1955600: Experimental Crystal Structure Determination

2020

Related Article: Lucia Volbach, Niklas Struch, Fabian Bohle, Filip Topić, Gregor Schnakenburg, Andreas Schneider, Kari Rissanen, Stefan Grimme, Arne Lützen|2020|Chem.-Eur.J.|26|3335|doi:10.1002/chem.201905070

Space GroupCrystallography[tricyclo[8.2.2.247]hexadeca-1(12)46101315-hexaene-512-diyl]bis(isocyanide)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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