X-Ray structure of the hydrido-tris(triphenylphosphine)-ruthenium(II) ion, [RuH(PPh3)2(η-Ph-PPh2)]+

Abstract

The X-ray crystal structure of hydridotris(triphenylphosphine)ruthenium(II) tetrafloroborate confirms a previous suggestion based on spectroscopic studies that one of the phenyl rings of one triphenylphosphine group is bound as an arene to the metal; ³¹P n.m.r. spectra are in accord with the structure but unusual dependence of the low field doublet intensity upon the frequency of the secondary irradiating field at proton resonance frequencies is observed.