title: 2,5-Dihy-droxy-terephthalic acid dihydrate.
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.
authors: Department of Chemistry, Chung-Yuan Christian University, Chung-Li 320, Taiwan.
authors: Po-Wen
authors: PW
authors: Cheng
authors: Chi-Feng
authors: CF
authors: Cheng
authors: Yeh
authors: Y
authors: Chun-Ting
authors: Chia-Her
authors: CH
authors: Lin
references: Angew Chem Int Ed Engl. 2004 Apr 26;43(18):2334-75
references: 15114565
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677