Crystal structure of azido-(η(5)-cyclo-penta-dien-yl)bis-(tri-phenyl-phosphane-κP)ruthenium(II) di-chloro-methane hemisolvate.

Abstract

The title solvated complex, [Ru(η5-C5H5)(N3){P(C6H5)3}2]·0.5CH2Cl2, displays a typical piano-stool geometry about the RuII atom. The bond lengths and angles of the cyclo­penta­dienyl and phosphane ligands are very similar to that of the unsolvated complex [Taqui Khan et al. (1994 ▶). Acta Cryst. C50, 502–504]. The azide anion displays similar N—N distances of 1.173 (3) and 1.156 (3) Å and has an N—N—Ru angle of 119.20 (15)°, indicating a greater contribution of the canonical form Ru—N=N(+)=N(-) for the bonding situation. An intra­molecular C—H⋯N hydrogen-bonding inter­action between one ortho H atom of a phosphane ligand and the N atom coordinating to the metal is observed. A similar inter­molecular inter­action is observed between a meta H atom of a phosphane ligand and the terminal azide N atom of a neighbouring complex. Finally, two C—H⋯N inter­actions exists between the H atoms of the di­chloro­methane solvent mol­ecule and the terminal N atom of two azide anions. The solvent mol­ecule is located about a twofold rotation axis and shows disorder of the Cl atoms with an occupancy ratio of 0.62 (3):0.38 (3).