抄録
Introduction of chlorine, bromine, and iodine atom into the ring of labile bivalent metal acetylacetonates, bis (acetylacetonato) nickel (II) and-cobalt (II) chelates, is effected by N-halosuccinimide in carbon tetrachloride. Infrared and ultraviolet spectra of halogenated metal (II)-acetylacetonate chelate derivatives were measured. The masses of substituent at the central carbon atom of these metal (II)-acetylacetonates affected the frequencies of C=O and C=C stretching bands.
