Spectroscopy and thermal studies of the reaction of iodine with cobalt (II) and copper (II) acetylacetonate

a spectrophotometric study of 1:1 charge-transfer complexes derived from two metal acetylacetonates ( co (ii) and cu (ii) acetylacetonates) donor and iodine ( s-acceptor ) has been carried out. the equilibrium constants ( k ) and absortivity ( e ) for the formation of the chelate-iodine complexes have been evaluated. the suggested structure of the two solid triiodide charge-transfer complexes reported in this study is further supported by thermal analysis and far and mid infrared measurements.