Abstract
Complex of cobalt (II) with nicotinohydroxamic acid (NHA) has been investigated by spectroscopic method at 25 ± 0.1oC in aqueous solution of 0.1mol dm-3 ionic strength. The results reveal the sole formation of 1:2 complex at equilibrium. Spectra and magnetic studies of the isolated complex indicate octahedral mixed coordination mode (N.O). Microbial sensitivity test on eight micro-organism (that is, four gram +ve and four gram - ve bacterial strains) showed activity. Key words: Complex, hydroxamic acid, spectroscopic investigations, microbial activity, cobalt (II).
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