TRANSITION-METAL COMPLEXES OF 16-18-MEMBERED TETRAAZAMACROCYCLES BEARING POLYAMIDE GROUPS

A new series of 16-18 membered tetraazamacrocyclic complexes [ML(1)Cl( 2)]-[ML(4)CL(2)] [M = Fe-(II), Co-(II), Ni-(II) and Zn-(II) and [CuL(1 )]Cl-2-[CuL(4)]Cl-2 have been prepared via the template condensation r eaction of o-aminobenzoic acid with phthalic or glutaric acid and 1,2- diaminoethane or 1,3-diaminopropane. These complexes have been charact erized by IR, H-1 NMR, EPR and electronic spectral studies, and conduc tivity and magnetic susceptibility measurements. A square-planar geome try has been assigned for copper whereas the other metals exhibit octa hedral configurations. Copyright (C) 1996 Elsevier Science Ltd