Trimesic acid dimethyl sulfoxide solvate: space group revision

Bernès, Sylvain y Hernández, Guadalupe y Portillo, Roberto y Gutiérrez, René (2008) Trimesic acid dimethyl sulfoxide solvate: space group revision. Acta Crystallographica Section E Structure Reports Online, 64 (7). o1366. ISSN 1600-5368

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Resumen

The structure of the title solvate, C9H6O6�C2H6OS, was determined 30 years ago [Herbstein, Kapon & Wasserman (1978). Acta Cryst. B34, 1613–1617], with data collected at room temperature, and refined in the space group P21. The present redetermination, based on high-resolution diffraction data, shows that the actual space group is more likely to be P21/m. The crystal structure contains layers of trimesic acid molecules lying on mirror planes. A mirror plane also passes through the S and O atoms of the solvent molecule. The molecules in each layer are interconnected through strong O—H���O hydrogen bonds, forming a two-dimensional supramolecular network within each layer. The donor groups are the hydroxyls of the trimesic acid molecules, while the acceptors are the carbonyl or the sulfoxide O atoms.

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