Supramolecular imidazolium frameworks: direct analogues of metal azolate frameworks with charge-inverted node-and-linker structureElectronic supplementary information (ESI) available: Crystallographic data in CIF format, selected PXRD, infrared and solid-state NMR spectroscopy, and TGA data. CCDC 1050267-1050275. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5cc01645b

While azolate anions have been extensively used as anionic linkers in framework design, we now demonstrate the synthesis of square-grid networks that utilise their cationic analogues, imidazolium ions, as linkers. The resulting imidazolium frameworks are direct hydrogen-bonded analogues of square-gr...

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Main Authors: Mottillo, Cristina, Friš i, Tomislav
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description While azolate anions have been extensively used as anionic linkers in framework design, we now demonstrate the synthesis of square-grid networks that utilise their cationic analogues, imidazolium ions, as linkers. The resulting imidazolium frameworks are direct hydrogen-bonded analogues of square-grid metal azolates and the first examples of an inverted polarity framework design based on anionic nodes and cationic linkers. Assembly of imidazolium cations with tetrahedral divalent anions leads to supramolecular imidazolium frameworks, molecular analogues of metal azolate frameworks, illustrating a charge-inverted framework design involving cationic linkers and anionic nodes.
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title Supramolecular imidazolium frameworks: direct analogues of metal azolate frameworks with charge-inverted node-and-linker structureElectronic supplementary information (ESI) available: Crystallographic data in CIF format, selected PXRD, infrared and solid-state NMR spectroscopy, and TGA data. CCDC 1050267-1050275. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5cc01645b
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