PMR studies of palladium(II)-glycyl-L-aspartic acid complexes in aqueous solution

The PMR technique has been used to establish the coordinations in 1 : 1 and 1: 2 Pd(II) to glycyl-L-aspartic acid complexes. In the 1 : 1 complex both nitrogens and the α-carboxyl group are coordinated to the metal ion and the β-carboxyl group is in a pseudoaxial position. In the 1 : 2 complex only nitrogen atoms are coordinated to Pd(II) ions and the conformations of the ligands in this complex are also established.