Binuclear Copper(II) Complexes Containing Two Crown-Type Macrocyclic Rings

Abstract

In the presence of copper(II) two hexadentate amines 1,3- and
1,4-bis[bis(3-aminopropyl)]-benzene condenses with 2,6-diacetylpyridine
in ethanol-water solution (1: 1), producing binuclear
Schiff-base macrocycles. The effective magnetic moments of each
copper atom in solution for these complexes are about 1.75 B.M.,
indicating that the two macrocyclic rings are probably in face-to-face
fashion and some antiferromagnetic interaction is operative
between the two copper(II) ions. IR and UV-VIS spectra of these
complexes are also studied.