Coordinatively unsaturated stannyl complexes of ruthenium(II) via a new synthetic route involving vinylstannanes: Molecular structure of Ru(SnMe3)Cl(CO)(PPh3)2

Article abstract of DOI:10.1021/om00026a006

Treatment of RuHCl(CO)(PPh₃)₃ (1) with (CH₂=CH)SnR₃ (R = p-tolyl, Me) affords high yields of the coordinatively unsaturated complexes Ru(SnR₃)Cl-(CO)(PPh₃)₂ (R = p-tolyl (2), Me (3)) probably via insertion of the vinylstannane into the ruthenium hydride bond followed by a β-stannyl elimination from the resulting β-stannylethyl complex. The p-tolyl derivative 2 is unstable with respect to a p-tolyl migration to ruthenium, forming Ru(p-tolyl)Cl(CO)(PPh₃)₂. The molecular geometry of Ru(SnMe₃)Cl(CO)(PPh₃)₂ (3) has been determined by a single-crystal X-ray diffraction study.