Crystal and molecular structure of bis(pyridine-2-thiolato)bis(triphenylphosphine) ruthenium(II)

Abstract

The structure of the title compound has been determined from three-dimensional X-ray diffractometer data. The crystals are orthorhombic, with unit-cell dimensions: a= 27·97, b= 11·473, and c= 12·358 Å; space-group Pna2₁ and Z= 4. The structure was refined by least-squares to R 0·038 for 2633 independent reflections.

The complex is monomeric, and the ruthenium atom has a highly distorted octahedral co-ordination. The triphenylphosphine groups are cis, and the pyridine-2-thiolato-ligands are both bidentate, co-ordinating through their nitrogen and sulphur atoms such that the sulphur atoms are trans. The Ru–P distances are 2·319 and 2·332 Å, Ru–N are 2·115 and 2·132 Å, while Ru–S distances are rather longer than usual (2·434 and 2·437 Å). The N–Ru–S angles are ca. 67°.