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Acta Cryst. (2013). E69, m268
[ doi:10.1107/S1600536813009604 ]

Poly[[aqua{[mu]4-2-[(carboxymethyl)sulfanyl]nicotinato-[kappa]4O:O':O'':O'''}copper(II)] trihydrate]

W.-Q. Li

Abstract: In the polymeric title complex, {[Cu(C8H5NO4S)(H2O)]·3H2O}n, the CuII cation is coordinated by one water molecule and four carboxylate O atoms from four 2-[(carboxymethyl)sulfanyl]nicotinate anions in a distorted square-pyramidal geometry. The 2-[(carboxymethyl)sulfanyl]nicotinate anion bridges four CuII cations, forming a two-dimensional polymeric complex parallel to the bc plane. In the crystal, O-H...O, O-H...N and O-H...S hydrogen bonds link the complex molecules and lattice water molecules into a three-dimensional supramolecular architecture.

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