Research Article: Bis{(E)-4-bromo-2-[(2-chloro-3-pyrid­yl)imino­meth­yl]phenolato-κ2N,O}copper(II)

Date Published: August 01, 2009

Publisher: International Union of Crystallography

Author(s): Wen-Kui Dong, Jun-Feng Tong, Li-Li An, Jian-Chao Wu, Jian Yao.

http://doi.org/10.1107/S1600536809027792

Abstract

In the title complex, [Cu(C12H7BrClN2O)2], the CuII center is tetra­coordinated by two phenolate O and two azomethine N atoms from two independent bidentate 4-bromo-2-[(2-chloro-3-pyrid­yl)imino­meth­yl]phenolate (L) ligands. In the crystal structure, the CuII atom has a distorted square-planar coordination environment. The inter­planar dihedral angles between the benzene and pyridine rings in the individual ligands are 63.83 (4) and 54.43 (3)°, indicating the pyridine ring to have considerably weaker steric hindrance.

Partial Text

For the applications of phenoxy­imines, see: John et al. (2007 ▶). For the structures of salen-type bis­oxime complexes, see: Dong et al. (2009a ▶,b ▶). Due to their chelating ability and positive redox potential, many copper(II) complexes are biologically active, see: Karmaka et al. (2007 ▶). For the preparation of (E)-[4-bromo-2-((2-chloro­pyridin-3-ylimino)meth­yl)]phenol, see: Dong et al. (2009c ▶). For bond-length data, see: Allen et al. (1987 ▶).

 

Source:

http://doi.org/10.1107/S1600536809027792

 

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