Dichloro[(1E,1'E)-1,1'-(Pyridine-2,6-diyl)Diethanone bis(O-Methyloxime)-κ(3)N(1),N(2),N(6)]Copper(II)

Abstract

In the title compound, [CuCl<inf>2</inf>(C<inf>11</inf>H<inf>15</inf>N <inf>3</inf>O<inf>2</inf>)], the CuII ion is five-coordinated in a strongly distorted trigonal-bipyramidal arrangement, with the two methyloxime N atoms located in the apical positions, and the pyridine N and the Cl atoms located in the basal plane. The two axial Cu - N distances are almost equal (mean 2.098 Å) and are substantially longer than the equatorial Cu-N bond [1.9757 (15) Å]. It is observed that the N(oxime)-M-N(pyridine) bond angle for five-membered chelate rings of 2,6-diacetylpyridine dioxime complexes is inversely related to the magnitude of the M-N(pyridine) bond. The structure is stabilized by intra- and intermolecular C-H⋯Cl hydrogen bonds which involve the methyl H atoms, except for one of the two acetylmethyl groups. © 2006 International Union of Crystallography.