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Acta Cryst. (2011). E67, m499-m500  [ doi:10.1107/S1600536811009949 ]

catena-Poly[copper(II)-{[mu]3-4,4'-dibromo-2,2'-[butane-1,4-diylbis(nitrilomethanylylidene)]diphenolato-[kappa]4N,O:N',O':O'}]

H. Kargar and R. Kia

Abstract: The asymmetric unit of the title coordination polymer, [Cu(C18H16Br2N2O2)]n, consists of a Schiff base complex in which a crystallographic twofold rotation axis bisects the central C-C bonds of the n-butyl spacers of the designated Schiff base ligands, making symmetry-related dimer units, which are twisted around CuII atoms in a bis-bidentate coordination mode. In the crystal, these dimeric units are connected through Cu-O bonds, forming one-dimensional coordination polymers, which propagate along [001]. The CuII atom adopts a square-based pyramidal coordination geometry, being coordinated by two N and two O atoms of symmetry-related ligands and by a third O atom of a neighboring complex. Furthermore, intermolecular [pi]-[pi] interactions [centroid-centroid distance = 3.786 (2) Å] and C-H...O interactions stabilize the crystal packing.

Online 26 March 2011


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