Acta Cryst. (2011). E67, m826-m827  [ doi:10.1107/S1600536811019210 ]

Poly[[(1,10-phenanthroline){₃-2,2',2''-[1,3,5-triazine-2,4,6-triyltris(sulfanediyl)]triacetato}cadmium] 0.42-hydrate]

C.-J. Chi, Y.-Q. Peng, S.-Y. Zeng and D.-Z. Sun

Abstract: The asymmetric unit of the title complex, {[Cd(C₉H₇N₃O₆S₃)(C₁₂H₈N₂)]·0.42H₂O}_n, contains a Cd^II atom, one doubly deprotonated 2,2',2''-[1,3,5-triazine-2,4,6-triyltris(sulfanediyl)]triacetic acid ligand (HTTTA^2-), a 1,10-phenanthroline (phen) ligand and a fractionally occupied water molecule [site occupancy = 0.421 (15)]. The Cd^II atom is six-coordinated within a distorted octahedral coordination geometry. Six coordination arises from four O atoms derived from three different HTTTA^2- ligands, and two N atoms of the chelating phen molecule. The incompletely deprotonated triazine ligand adopts a ₃-¹:¹:² coordination mode, resulting in the formation of chains along the c axis based on Cd₂O₂ dimeric units. Adjacent chains are stacked through - stacking [3.533 (2) Å between phen and triazine rings] and C-HO interactions, forming supramolecular sheets in the ab plane. Intra-and intermolecular O-HO hydrogen bonds are also observed.

Online 4 June 2011

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