Research Article: trans-Dichloridobis[(6-nicotinoyl-2-pyridyl-κN6)(3-pyridyl-κN)methanone]copper(II)

Date Published: June 01, 2011

Publisher: International Union of Crystallography

Author(s): Hong Qiang, Fan Zhang.


In the title complex, [CuCl2(C17H11N3O2)2], the CuII ion is located on an inversion center. It exhibits a distorted octa­hedral coordination geometry defined by two chloride anions at trans sites and four 3-pyridyl N atoms at equatorial sites from two (6-nicotinoyl-2-pyrid­yl)(3-pyrid­yl)methanone ligands. The (6-nicotinoyl-2-pyrid­yl)(3-pyrid­yl)methanone ligand can be viewed as having two pendant 3-pyridyl rings attached to a central pyridyl skeleton via separate carbonyl bridges, acting in a κ2N,N′-chelating mode with its 3-pyridyl N atoms bound to the CuII ion. The pendant 3-pyridyl rings make a dihedral angle of 80.76 (5)°. In the crystal, mol­ecules are linked through inter­molecular C—H⋯π and C—H⋯O inter­actions, forming a three-dimentional framework.

Partial Text

For transition metal complexes with di-pyrid-2-yl ketone, see: Papaefstathiou & Perlepes (2002 ▶); Efthymiou et al. (2006 ▶). For the crystal structure of an analogous CuII complex, see: Wan et al. (2008 ▶). For C—H⋯π inter­actions, see: Umezawa et al. (1998 ▶).




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