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Updated: Jul 14, 2026

Synthesis of a Water-soluble Metal–Organic Complex Array
Published on: October 8, 2016
catena-Poly[[diaquazinc(II)]-micro-4,4'-sulfonyldibenzoato-kappa2O:O']
Peng Bin Pan1, Lei Zhang, Zhao Ji Li
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, People's Republic of China.
Abstract:
The title compound, [Zn(C(14)H(8)O(6)S)(H(2)O)(2)](n), is the first reported metal complex of the 4,4'-sulfonyldibenzoate anion. The structure comprises zigzag chains of alternating [Zn(H(2)O)(2)](2+) and sulfonyldibenzoate units, the central Zn and S atoms of which lie on crystallographic twofold axes. The Zn(II) centre occupies a strongly distorted tetrahedral environment [O-Zn-O = 83.30 (7)-136.19 (8) degrees], 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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