(Acetonitrile){2,6-Bis-Dichloro Dichloro-Methane Hemisolvate: A Chain of Edge-Fused R6 6(24) Rings

Abstract

In the title compound, [RuCl2(C2H3N)(C27H31N3)]·0.5CH2Cl2, the RuII ion is six-coordinated in a distorted octa-hedral arrangement, with the two Cl atoms located in the apical positions, and the pyridine (py) N atom, the two imino N atoms and the acetonitrile N atom located in the basal plane. The dichloromethane solvent mol-ecule lies on a twofold axis. The two equatorial Ru - Nimino distances are almost equal (mean 2.089 Å) and are substantially longer than the equatorial Ru - Npy bond [1.914 (4) Å]. It is observed that the Nimino - M - Npy bond angle for the five-membered chelate rings of pyridine-2,6-diimine complexes is inversely related to the magnitude of the M - Npy bond. The title structure is stabilized by intra- and inter-molecular C - H⋯Cl hydrogen bonds. The inter-molecular hydrogen bonds form an R 6 6(24) ring and a chain of edge-fused rings running parallel to the [001] direction. © 2007 International Union of Crystallography.