Metal chelates of N-(2-pyridylmethyl)iminodiacetate(2-) ion (pmda). Part I. Two mixed-ligand copper(II) complexes of pmda with N,N-chelating bases. Synthesis, crystal structure and properties of H2pmda·0.5H2O, [Cu(pmda)(pca)]·3H2O (pca=α-picolylamine) and [Cu(pmda)(Hpb)]·5H2O (Hpb=2-(2′-pyridyl)benzimidazole) | Publicación