Rhodium Tetracarbonyl Hydride: The Elusive Metal Carbonyl Hydride

Abstract

The pure-component spectra of [HRh(CO)4] and [DRh(CO)4] were obtained by investigating solutions of [Rh4(CO)12] in n-hexane upon exposure to varying partial pressures of H2/CO and D2/CO. The in situ high-pressure FTIR spectra were measured and subjected to band-target entropy minimization (BTEM), an advanced signal processing technique (shown schematically).