Diphosphat als zweizähniger Ligand Spektroskopische Untersuchung des Bis(ethylendia min)-diphosphatocobaltat(III)-Anions

Diphosphate as a Bidentate Ligand. Spectroscopic Investigation of the Anion Bis(ethylenediamine)diphosphatocobaltate(III) The solid state infrared spectrum of Ba[Co(en)₂P₂O₇]₂ · 4 H₂O and the visible spectrum of an aqueous solution of the complex were recorded. The vibrational and bond properties as well as the ligand characteristics of the bidentate P₂O₇^4? group are briefly discussed.