Spectroscopic Studies of Metal-Cyanide Complexes

Part 1: Infrared and Visible Absorption Studies of Cyanide Complexes of Ni(II) in Aqueous Solution Part 2: An Analysis of the Infrared Vibrational Spectra of the Tetracyanonickelate(II) Ion in the Solid State In this work, further evidence has been collected establishing the existence of a new ionic species in solutions of sodium tetracyanonickelate(II) and sodium cyanide. Contrary to the literature, however, this work shows that the species is [Ni(CN)5]-3 rather than [Ni(CN)6]-4