Novel dipeptide complexes Cu (II)⋅ Val-Pro (1), Zn (II)⋅ Val-Pro (2), Cu (II)⋅ Ala-Pro (3) and Zn (II)⋅ Ala-Pro (4) were synthesized and thoroughly characterized using different spectroscopic techniques including elemental analyses, IR, NMR, ESI–MS and molar conductance measurements. The solution stability study carried out by UV–vis absorption titration over a broad range of pH proved the stability of the complexes in solution. In vitro ...