Intermolecular Inter-ligand Interaction in Mixed Ligand Complexes of Lanthanides(III) Involving Histidine and Some Amino Acids

Abstract

The formation constant studies on binary and mixed ligand complexes
of Pr(III) and Nd(III) involving histidine (hist) as primary
ligand and  α-alanine ( α-ala), valine (val) or leucine (leu) as secondary
ligands have been undertaken to evaluate the extra-stablization
in the mixed ligand complexes due to possible occurrence of
intramolecular inter-ligand interaction. Stability quantifying parameters
( Δlog k and ΔΔ log k) indicate significant inter-ligand interaction.