Abstract

T. A. Jayashri¹, G. Krishnan² and K. Viji¹

DOI : http://dx.doi.org/10.13005/ojc/330144

Potassium diaquabis(oxalato)cobaltate(II) was prepared by reported method and characterized. The sample was irradiated with ⁶⁰Co gamma rays up to 900 kGy. Spectral (IR, UV-Visible), non-isothermal decomposition and antimicrobial properties of the complex were studied before and after irradiation. The bacterial strains screened were E.Coli, K.pneumonia, B.Cereus, and the fungal strains were A.niger, A.fumigatus and Penicillium sp.Notable changes in position and intensity of infrared bands after irradiation suggested hydrogen   bonding and strong crosslinking in the irradiated   sample. From UV spectra racah parameters were calculated before and after irradiation. Thermal decomposition was enhanced upon irradiation. Antibacterial properties of the complex were found to be decreased upon irradiation while antifungal properties were enhanced.

Potassium diaquabis(oxalato)cobaltate(II); γ -irradiation; spectral studies; non-isothermaldecomposition; antimicrobial studies

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