Acta Cryst. (2010). E66, m1490-m1491  [ doi:10.1107/S160053681004328X ]

Poly[[[[1-ethyl-6,8-difluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylato]cadmium]--benzene-1,4-dicarboxylato] trihydrate]

X.-P. Kang, Z. An and R. Kasimu

Abstract: In the title layered coordination polymer, {[Cd(C₁₇H₁₈F₂N₃O₃)(C₈H₄O₄)]·3H₂O}_n, the Cd^II atom exhibits a very distorted CdO₆ octahedral geometry defined by one O³,O⁴-bidentate 1-ethyl-6,8-difluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylate (lome) ligand, one O,O'-bidentate benzene-1,4-dicarboxylate (bdc) dianion and two O-monodentate bdc dianions. Both the bdc species in the asymmetric unit are completed by crystallographic inversion symmetry. The bridging bdc dianions link the cadmium nodes into a rectangular grid lying parallel to (01). A network of N-HO and O-HO hydrogen bonds helps to establish the packing.

Online 31 October 2010

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