Synthesis and spectroscopic studies of bis(macrocyclic) dimetal(II) complexes based on 14-18 membered pentaaza units

摘要

Bis(macrocyclic) binuclear transition metal complexes [M2LCl4] [M = Fe(II), Co(II), Ni(II), Cu(II) and Zn(II); L = L-1-L-6, have been synthesised by the template condensation reaction of ethylenediamine or 1,3-diaminopropane with formaldehyde, benzidine and acetylacetone or dibenzoyl methane or phthalaldehyde in 4:4:1:2:2 molar ratio. All prepared complexes have been characterized by elemental analyses, IR, H-1 NMR, EPR and UV/VIS and conductivity data as well as magnetic susceptibility measurements. An octahedral geometry is suggested for all complexes. [References: 33]