catena-Poly[[diaquazinc(II)]-μ-4,4′-sulfonyldibenzoato-κ2O:O′]
2007
The title compound, [Zn(C14H8O6S)(H2O)2]n, is the first reported metal complex of the 4,4′-sulfonyldibenzoate anion. The structure comprises zigzag chains of alternating [Zn(H2O)2]2+ and sulfonyldibenzoate units, the central Zn and S atoms of which lie on crystallographic twofold axes. The ZnII centre occupies a strongly distorted tetrahedral environment [O—Zn—O = 83.30 (7)–136.19 (8)°], coordinated by the two water O atoms [Zn—O = 1.986 (2) A] and one O atom from each of two carboxylate groups [Zn—O = 1.9942 (19) A], with much longer contacts to the other O atoms of these carboxylates [Zn—O = 2.528 (2) A]. Hydrogen bonds between carboxylate O atoms and coordinated water molecules in adjacent chains lead to the formation of a three-dimensional network structure.
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