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Acta Cryst. (2013). E69, m647-m648
[ doi:10.1107/S1600536813030055 ]

Poly[[([mu]2-4,4'-bipyridyl-[kappa]2N:N')bis­{[mu]2-N-[2-(2-hy­droxy­benzo­yl)carbamo­thio­yl]acetamidato-[kappa]4O,N,O':S}bis­(nitrato-[kappa]2O,O')dicadmium] di­methyl­formamide tetra­solvate]

M.-H. You, F.-J. Li, X.-P. Yang, X.-X. Lin and H.-Y. Ye

Abstract: The asymmetric unit of the title complex, {[Cd2(C10H10N3O3S)2(C10H8N2)(NO3)2]·4C3H7NO}n, consists of one CdII cation, one N-[2-(2-hy­droxy­benzo­yl)carbamo­thio­yl]acetamidate ligand, half a 4,4'-bipyridyl ligand, one coordinating nitrate anion and two di­methyl­formamide solvent mol­ecules of crystallization. The bipyridine ligand is completed by inversion symmetry. The metal cation exhibits a distorted penta­gonal-bipyramidal coordination geometry provided by two O and one N atoms of the thio­semicarbazide ligand, two O atoms of the nitrate anion, one S atom of a neighbouring thio­semicarbazide ligand and one 4,4'-bi­pyridine N atom. The bridging role of the thio­semicarbazide ligand through the S atom leads to centrosymmetric binuclear units, which are further linked by 4,4'-bi­pyridine units, forming polymeric chains extending along the b-axis direction. An intra­molecular N-H...O hydrogen bond occurs. The crystal structure also features N-H...O and O-H...O hydrogen bonds, leading to the formation of a three-dimensional network.

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