New homoleptic metal carbonyl cations: the syntheses, vibrational and 13C MAS NMR spectra of hexacarbonyl-ruthenium(II) and-osmium(II) undecafluorodiantimonate(V), [Ru(CO)6][Sb2F11]2 and [Os(CO)6][Sb2F11]2
Abstract
The new homoleptic carbonyl cations [Ru(CO)6]2+ and [Os(CO)6]2+ are obtained as [Sb2F11]– salts by the reductive carbonylation of M(SO3F)3(M = Ru, Os), under very mild conditions (60–90 °C, 1 atm CO), in liquid SbF5 in a simple, one-step procedure, and are characterized by FT Raman, FTIR and 13C MAS NMR spectroscopy.