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2,5-Dihy-droxy-terephthalic acid dihydrate
Po-Wen Cheng1, Chi-Feng Cheng, Yeh Chun-Ting
1Department of Chemistry, Chung-Yuan Christian University, Chung-Li 320, Taiwan.
Abstract:
The title compound, C(8)H(6)O(6)·2H(2)O, was obtained by accident within a project on the synthesis of metal-organic coordination polymers by the reaction of LiOH with 2,5-dihy-droxy-terephthalic acid under solvothermal conditions. The asymmetric unit consists of half a 2,5-dihy-droxy-terephthalic acid mol-ecule located on a centre of inversion and one solvent water mol-ecule that occupies a general position. The 2,5-dihy-droxy-terephthalic acid mol-ecules are connected to the water mol-ecules via O-H⋯O hydrogen bonding to form a layer in the ab plane.
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