A Raman spectroscopic study of the hydrogenation of aqueous pentacyanocobaltate(II)

Abstract

Raman spectroscopy has been used to investigate the complexes formed during the hydrogenation of aqueous pentacyanocobaltate(II). The Raman spectra of hydridopentacyanocobaltate(III), the main species present in solution, and of its deuteriated analogue, are reported for the first time. The study also shows that in the presence of excess of CN^– the hydrogenation may be accompanied by the formation of some hexacyanocobaltate(III). The reaction between pentacyanocobaltate(II) and borohydride was also studied.