Copper(II) Complexes with 3,8-Diphenyl-3,7-Diene-4,7-Diaza-2,9-Decadihydroximine

Abstract

Reaction of the oximine ligand 3,8-diphenyl-3,7-diene-4,7-diaza-2,9-
decadihydroximine, Hzpeah wih copper(lI) acetate yields an inner complex
salt of the type [Cu(peah)] in an alkaline alcoholic medium. When
[Cu(peah)] and CuX₂ salts are allowed to react in ethanolic medium, a
series of binuclear copper(ll) complexes of the type [Cu₂(peah)X₂]
(X = Cl^-, Br^-, NO₃^- or ClO₄^- ) have been obtained. When an alcoholic
solution of the oximine ligand is allowed to react with an ethanolic solution
of copper(II) chloride having a few drops of 6N-HCl, a complex having
the formula [Cu(H₂peah)CI₂] is formed. Magnetic measurements, spectral
studies and conductivity data indicate [Cu(peah)] to have square planar
geometry whereas [Cu2(peah)X₂] possess C₂ symmetry. The complex
Cu(H₂peah)CI₂] is expected to have a distorted octahedral geometry.