A number of mixed ligand surfactant-Cobalt(III) complexes of the type cis-[Co(phendione)2AX]2+ and cis-[Co(phendione)2A2]3+ (phendione = 1,10-phenanthroline-5,6-dione, A = dodecylamine or cetylamine, X= Cl) were synthesized and characterized by elemental analysis, UV–Vis, Infra-red and NMR spectroscopy methods. The critical micelle concentration (CMC) values of these complexes in aqueous solution were obtained from conductance measurements. The specific conductivity data (at 303, 308 and 313 K) served for the evaluation of the temperature dependent CMC and the thermodynamics of micellization.
Keywords: Surfactant; Cobalt(III); CMC;
