Synthesis and characterization of uns-cis-(ethylenediamine-N, N'-di-3-propionato) cobalt(Ⅲ) complexes with symmetrical β -diketonato ligands

摘要

Some uns-cis-(ethylendiamine-N,N'-di-3-propionato) cobalt (Ⅲ) complexes with symmetrical β-diketonato ligands, 2,4-pentanedione, 1,3-diphenyl-1,3-propanedione and 2,2,6,6-tetramethy-3, 5-heptanedione, have been prepared by the reaction of sodium uns- cis-(ethylendiamine-N, N'-di-3-propionato)(carbonato) cobaltate (Ⅲ) and the correspond- ing diketone at 75 deg. C. The complexes were isolated chromatographically and characterized by elemental analysis, infrared and electron absorption spectroscopy.