Synthesis and Physicochemical Studies of Nickel(II) Complexes of Various 2-Alkyl-1-phenyl-1,3-butanediones and Their 2,2?-Bipyridine and 1,10-Phenanthroline Adducts

Joseph Woods, Helen Oluwatola Omoregie


Some 2-substituted-1-phenyl-1,3-butanedionato nickel(II) complexes and their 2,2′-bipyridine (bipy) and
1,10-phenanthroline (phen) adducts have been synthesized and characterized by elemental analyses, infrared,
electronic spectral studies, conductance, and magnetic susceptibility measurements. The electronic spectral data
have been interpreted in terms of the π3→π4
* and other transitions and the effect of the substituents at β-position on
the different transitions determined. The infrared spectra of the nickel(II) complexes showed that the frequencies of
the asymmetric C=O + C=C stretching vibrations were lowered from their ligand values.

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International Journal of Chemistry   ISSN 1916-9698 (Print)   ISSN 1916-9701 (Online)

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