Spectroscopic and electrochemical investigation with coordination stabilities: Mononuclear manganese(II) complexes derived from different constituents macrocyclic ligands

Thus, two macrocyclic ligands, L1: 2,4-diphenyl-1,5-diaza-8,12-dioxo-6,7:13,14-dibenzocyclo tetradeca-1,4-diene[N2O2]ane; L2: 2,4,9,11-tetraphenyl-6,13-dimethyl-1,5,8,12-traazacyclotertr-adeca-1,4,8,11-tetraene[N4]ane; and two more different form first one viz.-L3: 1,7-diaza-4-monothia-10,14-dioxo-8,9:15,16-cyclohexadecane[N2O2S]ane and L4: 4,13-diaoxa-1,7,10,16-hexazacyclooctadecane[N4O2]ane were prepared and their capacity to retain the manganese(II) ion in solid as well as aqueous solution was determined from various physiochemical techniques viz: characterized by elemental analyses, molar conductance measurements, magnetic susceptibility measurements, mass, IR, electronic, ESR spectral studies and cyclic voltammetric measurements.