Fig. 6From: Equilibria in cobalt(II)–amino acid–imidazole system under oxygen-free conditions: effect of side groups on mixed-ligand systems with selected L-α-amino acidsSuggested coordination modes of the ternary Co(II)–Himid–l-α-Lys complexes: a MLL′H; b ML2L′H2; c ML2L′H. R = (CH2)4 Back to article page