Acta Cryst. (2007). E63, m3088  [ doi:10.1107/S1600536807058680 ]

trans-Bis(2,2'-bipyridine)dichloridoruthenium(II)

P. Klüfers and A. Zangl

Abstract: In the title compound, [RuCl₂(C₁₀H₈N₂)₂], the Ru atom is located on a crystallographic inversion center. The bipyridine (bpy) ligands are thus coordinated trans, leading to steric interactions between pairs of opposite ortho-H atoms. The result is a marked deviation from the expected planarity of some units; the two pyridine rings of an individual bpy ligand enclose a 23.8 (1)° angle. With the RuN₄ plane, the same pyridine rings enclose angles of 22.3 (1) and 21.0 (1)°. The octahedral environment of the Ru atom, however, is not markedly distorted, with the Ru-Cl axis enclosing a 87.32 (6)° angle with the RuN₄ plane. In the crystal structure, the most significant intermolecular interaction, besides the expected stacking [3.424 (3) Å perpendicular distance of parallel-stacked rings, and 3.389 (3) Å closest ring-atom distance for an inclined contact], is a weak C-HCl hydrogen bond.

Online 21 November 2007

Copyright © International Union of Crystallography
IUCr Webmaster