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

catena-Poly[copper(II)-{₃-4,4'-dibromo-2,2'-[butane-1,4-diylbis(nitrilomethanylylidene)]diphenolato-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 Cu^II 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 Cu^II 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 - interactions [centroid-centroid distance = 3.786 (2) Å] and C-HO interactions stabilize the crystal packing.

Online 26 March 2011

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