Abstract

A novel hybrid Keggin tungstocobaltate [Co(H2O)6][C5H6N] H4[CoW12O40][NO3].3H2O was prepared by the hydrothermal method and was characterized by elemental analyses, IR spectra, TG-DTA and single crystal X-ray diffraction techniques. This might be the first example of transition metal fuctionalised POM where the same cobalt metal resides at the centre of both of the cationic and anionic complexes. Furthermore, their antibacterial efficacy was determined by MIC and MBC on Gram-negative (Escherichia coli, Salmonella typhi) and Gram-positive (Streptococcus pneumoniae, Bacillus cereus) bacteria. The results indicated an acceptable bacteriostatic and bactericidal effects of this hybrid polyoxometalate.

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