Transition metal ion directed bimetallic macrocyclic complexes

Template condensation of 1,4-phenylenediamine, formaldehyde, 1,3-diaminopro pane and benzil in a 1:4:4:2, molar ratio results in the formation of a new series of binuclear decaazamacrocyclic complexes: dichloro/nitrato [1-phen yl bis(8,9-diphenyl-1,3,7,10,14 pentaazacyclo-pentadeca-7,9-diene) metal (I I)], [M2LX4](M = Mn-II, Co-II, Ni-II, Cu-II and Zn-II, X = Cl or NO3), whic h were characterised by i.r., H-1-n.m.r., e.p.r., u.v-vis. spectral studies , conductivity and magnetic susceptibility measurements. All the complexes show octahedral geometry.