title: catena-Poly[[zinc-bis-(μ-2-sulfido-1H-benzimidazol-3-ium-5-carboxyl-ato)-κO:S;κS:O] trihydrate].
abstract: In the title compound, {[Zn(C(8)H(5)N(2)O(2)S)(2)]·3H(2)O}(n), the Zn(II) atom, lying on a twofold rotation axis, is four-coordinated by two S atoms and two O atoms from four 2-sulfido-1H-benzimidazol-3-ium-5-carboxyl-ate (H(2)mbidc) ligands in a distorted tetra-hedral geometry. Two H(2)mbidc ligands bridge two Zn(II) atoms, generating a double-chain along [[Formula: see text]01]. Adjacent chains are linked by N-H⋯O and O-H⋯O hydrogen bonds, forming a three-dimensional supra-molecular network. One of the two water molecules also lies on a twofold rotation axis.
authors.forename: Ya-Ping
authors.initials: YP
authors.lastname: Li
authors.forename: Da-Jun
authors.initials: DJ
authors.lastname: Sun
authors.forename: Hu
authors.initials: H
authors.lastname: Zang
authors.forename: Li-Ying
authors.initials: LY
authors.lastname: Han
authors.forename: Guan-Fang
authors.initials: GF
authors.lastname: Su