[(η6-p-cym)Ru(H2O)3]2+ binding capability of N-methylimidazole to model the interaction between the metal ion and surface histidine residues of peptides

Formation of stable mononuclear complexes with different protonation degree was found in the [Ru(η6-p-cym)(H2O)3]2+ - N-methylimidazole (meim) system in slow processes and meim was capable of hindering the hydrolysis of the metal ion at pH = 7.4.78