A Robust Nanoporous Supramolecular Metal–Organic Framework Based on Ionic Hydrogen Bonds |
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| Authors: | Dr Nans Roques Dr Georges Mouchaham Dr Carine Duhayon Dr Stéphane Brandès Aurélie Tachon Dr Guy Weber Prof Dr Jean Pierre Bellat Dr Jean‐Pascal Sutter |
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| Institution: | 1. CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, 31077 Toulouse (France);2. Université de Toulouse, UPS, INPT, 31077 Toulouse (France);3. ICMUB, Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302 CNRS, Université de Bourgogne, 21078 Dijon (France);4. ICB, Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université de Bourgogne, 21078 Dijon (France) |
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| Abstract: | Hydrogen‐bond assembly of tripod‐like organic cations H3‐MeTrip]3+ (1,2,3‐tri(4′‐pyridinium‐oxyl)‐2‐methylpropane) and the hexa‐anionic complex Zr2(oxalate)7]6? leads to a structurally, thermally, and chemically robust porous 3D supramolecular framework showing channels of 1 nm in width. Permanent porosity has been ascertained by analyzing the material at the single‐crystal level during a sorption cycle. The framework crystal structure was found to remain the same for the native compound, its activated phase, and after guest resorption. The channels exhibit affinities for polar organic molecules ranging from simple alcohols to aniline. Halogenated molecules and I2 are also taken up from hexane solutions by this unique supramolecular framework. |
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| Keywords: | crystal engineering host– guest systems hydrogen bonds microporous materials supramolecular chemistry |
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