Studies on Mixed Ligand Complexes of Copper. Part III. Copper-Lactate-Aminocarboxylate Complexes

Department of Inorganic Chemistry, University of Madras, A. C. College Buildings, Guindy, Madras-600 025

Manuscript received 16 November 1979, accepted 20 December 1979

Formation and stability of mixed-ligand complexes of Cu²⁺ with lactic acid as primary ligand and some amino acids as secondary ligands were determined by pH-metry and by spectrophotometry at 30° and at µ=0.25 (KNO₃). Δ log K and log X values indicate the favoured formation of these mixed-ligand complexes with heterodonor atoms when compared to mixed-ligand complexes with identical donor atoms. The factors affecting the formation and stability of the mixed-ligand complexes are discussed.