Transition-metal complexes of NNN′N″N‴N‴-hexamethyl-3,6-diazaoctane-1,8-diamine. Part I. Nickel(II) and copper(II) compounds

Abstract

A series of compounds have been prepared of general formula M(trien)X₂(trien =NNN′N″N‴N‴-hexamethyl-3, 6-diazaoctane-1,8-diamine) for M = Ni^II, X = Cl, Br, NO₃, SCN, ClO₄, or BPh₄; for M = Cu^II, X = Br, SCN, ½SO₄, ClO₄, BPh₄. The i.r. and electronic spectra, the magnetic moments, and the conductivites of the compounds have been recorded and used to elucidate their structure; nickel compounds with X = Cl, Br, NO₃, and SCN are octahedral, with X = ClO₄ and BPh₄ square planar; copper compounds are five-co-ordinate with exception for X = ClO₄ and BPh₄.