Studies on Synthesis and Spectra of Cu(Ⅱ) Complexes of Benzoylacetone-ethylenediamine Half-unit Schiff base

The Concentration reaction of benzoylacetone （bzac） with ethylenediamine （en） produced a half-unit Schiff base （bzacen）. which was used to prepare novel Cu（ II ） complexes with 1,10-phenanthroline and 2.2-bipyridine.Cu（bzacen）（phen）₁ and Cu（bzacen）（bipy）₄. The complexes were characterized by elemental analyses. IR. UV and ESR spectra. The result that the coordination geometry of Cu（ II） atom in both complexes is the pyramidal with approximate C_4v symmetry is in agreement with the X-ray structures.