Stability constants of nickel (II), cobalt (II) and copper (II) complexes of some optically active and racemic amino‐acids

The stability constants of nickel (II), cobalt (II) and copper (II) complexes of glutamic acid, aspartic acid, asparagine, and glutamine have been determined in aqueous solutions, containing either the pure L ‐form or both the D ‐ and L ‐forms of the ligands. No significant differences were found between the stabilities of corresponding ML 2 and MDL complexes in solution.