Vanadium(IV) fonns highly stable complexes with acetohydroxamate. In the detennination of thermodynamic parameters such as .6.G, MI and M; of these Vanadium (IV) complexes, the data was processed and analyzed by computer program BEST for the refinement of the calculated log p values. Graphs were plotted with Inp versus Iff, which gave .Mi/R as slope and .6.SIR as intercept Enthalpy change for Vanadium(IV) with this simple hydroxamic acid was found to be -166.0, -83.0 and -86.0kJ/mole for ML. , M~ and ML] respectively. Entropy change was 672.30, 475.38 and 567.12 J/mole for ML, M~ and ML] complexes respectively. While .6.G values calculated for these species were -372.3, -230.5 and -261.8 kJ/mole. The .6.S is most positive for a 1: I complex while .6.G and MI are more negative for the same.
K ALI ,N FATIMA ,Z T MAQSOOD ,
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