Synthesis and structural studies of(2E,3E,6R,9E,11E)-6-isopropenyl-3,6,10-trimethyl-5,8-dioxa-4,9-diazadodeca-3,9-diene-2,11-dione dioxime,ligand and its Mono-,homo,and heterodinuclear copper(II)ickel(II)complexes

摘要

This article describes the synthesis of a new(2E,3E,6R,9E,11E)-6-isopropenyl-3,6,10-trimethyl-5,8-dioxa-4,9-diaz-adodeca-3,9-diene-2,11-dione dioxime(H2hmdm),and its mono-,homo,and heterodinuclear copper(II)ickel(II)complexes.Elemental analyses,stoichiometric and spectroscopic data of the metal complexes indicated that the metal ions are coordinated to the oxime and imine nitrogen atoms(C=N).The Cu(H2hmdm),molecule coordinates to the second copper(II)ion through the oximate oxygens to afford a binuclear structure doubly bridged by the oximate groups in the cis arrangement.In the dinuclear complexes,in which the first Cu~(II)ion was complexed with nitrogen atoms of the oxime and imine groups,the second Cu~(II)ion is ligated with the 1,10-phenanthroline nitrogen atoms.Ligand and its mononuclear copper(II),homo and heterodinuclear copper(II)-nickel(II)complexes of(H2hmdm)were characterized by elemental analyses,magnetic moments,~1H-n.m.r.and ~(13)C-n.m.r.,i.r.,and mass spectral studies.The data support the proposed structure of H2hmdm and its complexes.