Acta Cryst. (2007). E63, m2434-m2435  [ doi:10.1107/S1600536807041487 ]

(Acetato-²O,O')(aqua-O)[1-(2-pyridylmethylidene-N)semicarbazide-²N¹,O](thiocyanato-S)cadmium(II) monohydrate

L.-F. Deng, G.-Q. Guo, D.-C. Zhong, J.-H. Deng and M.-P. Guo

Abstract: The Cd atom in the title complex, [Cd(C₂H₃O₂)(NCS)(C₇H₈N₄O)(H₂O)]·H₂O, is coordinated by one neutral Schiff base ligand, one acetate anion, one thiocyanate anion and one water molecule, forming a distorted pentagonal-bipyramidal geometry. The thiocyanate S atom and the coordinated water ligand occupy the apical positions of the coordination polyhedron. The acetate acts as a bidentate ligand through the carboxylate O atoms. The Schiff base, derived from the condensation of pyridine-2-carbaldehyde and semicarbazone, acts as a tridentate ligand, coordinating the metal through the amide, imine and pyridyl N atoms in a meridional fashion. The crystal packing is stabilized by - stacking interactions between the neighboring pyridine rings and hydrogen bonds involving the Schiff base, thiocyanate, water molecules and uncoordinated solvent water molecules.

Online 29 August 2007

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