Preparation and Characterization of Facial and Meridional Isomers of Uns-Cis-(Ethylenediamine-N,n'-Di-3-Propionato)(glycinato)cobalt(iii) Semihydrate

Both theoretically possible geometrical isomers, facial and meridional, of uns-cis-(ethylenediamine-N, N′-di-3-propionato)(glycinato)cobalt(III) semi hydrate have been prepared by reaction of sodium uns-cis-(ethylenediamine-N, N′-di-3-propionato) (carbonato) cobaltate(III) with glycine at 75°C. The complexes have been isolated chromatographically and characterized by elemental analysis, electron absorption, infrared and nuclear magnetic spectra.