Acta Cryst. (2007). E63, m2317  [ doi:10.1107/S1600536807036628 ]

catena-Poly[[(benzoato-²O,O')chloridocadmium(II)]--2,2'-diphenyl-1,1'-(butane-1,4-diyl)diimidazole-²N³:N^3']

Y.-Y. Liu, J.-F. Ma and L.-P. Zhang

Abstract: The title Cd^II coordination polymer, [Cd(C₇H₅O₂)Cl(C₂₂H₂₂N₄)]_n, was obtained by reaction of CdCl₂·2.5H₂O, benzoic acid (HL) and 2,2'-diphenyl-1,1'-(butane-1,4-diyl)diimidazole (bbip). Each Cd^II cation is five-coordinated by a ClO₂N₂ donor set in a distorted trigonal-bipyramidal geometry. In the bbip ligand, three C atoms and one N atom are disordered equally over two positions; another two C atoms are disordered over two positions, the site-occupancy ratio being 0.6:0.4. The bbip ligand acts as a bridging bidentate ligand, linking Cd^II centres into a one-dimensional zigzag chain; adjacent chains are further connected through face-to-face - interactions between the imidazole rings [with an average face-to-face distance of 3.560 (8) Å], resulting in the formation of a two-dimensional supramolecular layer.

Online 10 August 2007

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