82373-33-9Relevant academic research and scientific papers
Metal complexes containing diastereoisomers and enantiomers of o-phenylenebis(methylphenylarsine) and its Phosphorus analogue. 4. Preparation and properties of carbonyl halide derivatives of ruthenium(II)
Grocott, Stephen C.,Wild, Stanley Bruce
, p. 3535 - 3540 (2008/10/08)
Octahedral complexes of the type [RuCl2(CO)2(bidentate)] have been prepared from the meso, racemic, and optically active forms of o-phenylenebis(methylphenylarsine) and its phosphorus analogue. Methods are described for the production of either the cis- or trans-dichloro isomers. The salts [RuCl(CO)3(bidentate)]Cl were also isolated in the case of the di(tertiary phosphines) and shown to contain a meridional arrangement of carbonyl ligands. The neutral dicarbonyls underwent reversible decarbonylation to form the chloro-bridged dimers [RuCl2(CO)(bidentate)]2. Reaction of the dimers or neutral dicarbonyls with dimethyl sulfoxide gave exclusively the cis-dichloro complexes [RuCl2(CO)(bidentate)(Me2SO-S)]. The latter were shown to undergo a slow epimerization at the metal center which was facilitated by heating, according to variable-temperature 1H NMR studies. The structures of the various stereoisomeric complexes were assigned on the basis of spectroscopic data and, in two instances, X-ray crystallography.
