Search results for "cavitands"

showing 4 items of 4 documents

Halogen Bonded Analogues of Deep Cavity Cavitands

2014

The first examples of halogen bonded analogues of deep cavity cavitands with guest binding properties, formed between N-alkyl ammonium resorcinarene halides as acceptors and bromotrichloromethane as the donor, are reported in the solid state and in solution.

Binding propertiesMetals and AlloysSolid-stateHalideGeneral ChemistryResorcinarenePhotochemistryCatalysisSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistry.chemical_compoundchemistryResorcinarenes; Cavitands; X-ray Crystallography; Halogen BondsHalogenMaterials ChemistryCeramics and CompositesAmmoniumta116
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Halogen-bonded solvates of tetrahaloethynyl cavitands

2017

The formation and structures of halogen-bonded solvates of three different tetrahaloethynyl cavitands with acetone, chloroform, acetonitrile, DMF and DMSO were prepared and investigated. The inclusion and host–guest behaviour of the resorcinarene cavitands was found to be highly dependent on the flexibility of the ethylene-bridging unit.

Chloroformta114010405 organic chemistryGeneral ChemistryResorcinarene010402 general chemistryCondensed Matter Physicshalogen bond ; cavitands ; resorcinarenes ; host-guest complexes01 natural sciencessupramolecular chemistrycavitands0104 chemical scienceschemistry.chemical_compoundChemistrychemistrysolvatessupramolekyylikemiaHalogenPolymer chemistryAcetoneOrganic chemistryGeneral Materials ScienceAcetonitrileta116Biochemistry Biophysics and Structural Biology
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[N⋅⋅⋅I+⋅⋅⋅N] Halogen-Bonded Dimeric Capsules from Tetrakis(3-pyridyl)ethylene Cavitands

2016

Two [N⋅⋅⋅I+⋅⋅⋅N] halogen-bonded dimeric capsules using tetrakis(3-pyridyl)ethylene cavitands with different lower rim alkyl chains are synthesized and analyzed in solution and the gas phase. These first examples of symmetrical dimeric capsules making use of the iodonium ion (I+) as the main connecting module are characterized by 1H NMR spectroscopy, diffusion ordered NMR spectroscopy (DOSY), electrospray ionization mass spectrometry (ESI-MS), and ion mobility-mass spectrometry (TW-IMS) experiments. The synthesis and effective halogen-bonded dimerization proceeds through analogous dimeric capsules with [N⋅⋅⋅Ag+⋅⋅⋅N] binding motifs as the intermediates as evidenced by the X-ray structures of …

EthyleneElectrospray ionizationhalogen bonds010402 general chemistryMass spectrometry01 natural sciencesCatalysiscavitandsIonchemistry.chemical_compoundPolymer chemistryOrganic chemistrySpectroscopyta116Alkylmass spectrometrychemistry.chemical_classificationta114010405 organic chemistrydimeric capsulesGeneral MedicineGeneral ChemistryNuclear magnetic resonance spectroscopy0104 chemical scienceschemistryHalogenhalonium ionsANGEWANDTE CHEMIE
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Design and construction of halogen-bonded capsules and cages

2017

This thesis describes the design, synthesis and characterization of supramolecular halogen-bonded capsules and cages from multivalent ligands. In the first part of the thesis, an overview to halogen bonding is provided. After discussing the general features of the halogen bonding, the most frequently used halogen bond donors are introduced and examples of their utilization in halogen-bonded systems are discussed. The chapter also presents recent advances made in the field of halogen-bonded supramolecular capsules. The first part of the thesis also includes a review of halogen-bonded complexes involving halonium ions, and a brief introduction to [N···X+···N] halogen bonds is provided along w…

halogeenitcation exchangemolekyylitkompleksiyhdisteetself-assemblycavitandssupramolecular chemistrykavitanditkemialliset sidoksetsupramolekyylikemiahalogen-bonded capsuleshalogen bondhalogeenisidoshalonium ionsmolekyylikapselitröntgenkristallografiaX-ray crystallography
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