COMPARATIVE STUDY OF THERMODYNAMIC PARAMETERS OF VANADIUM (IV) AND (V) ACETOHYDROXAMATE COMPLEXES

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ALI K.; FATIMA N.; MAGHSOUD Z.T.

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Journal: Scientia Iranica Year:2005 | Volume:12 | Issue:3 Page(s): 311-317

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Title

COMPARATIVE STUDY OF THERMODYNAMIC PARAMETERS OF VANADIUM (IV) AND (V) ACETOHYDROXAMATE COMPLEXES

Author(s)

ALI K. | FATIMA N. | MAGHSOUD Z.T. | Issue Writer Certificate

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Abstract

Acetohydroxamic Acid, CH3CONHOH,Forms Highly Stable Complexes With Vanadium (V) And Vanadium (IV) In 1:1, 1:2 And 1:3 Mole Ratios. The Stability of These Complexes Can Be Determined In Terms Of Thermodynamic Parameters; ΔG, ΔH And ΔS, The Preliminary Data, Obtained Through Ph Titration At Various Temperatures, Was Processed And Analyzed By The Computer Program BEST For The Refinement Of Graphically Calculated Log b values. Graphs Of In b Versus L/t, Gave A Straight Line, With A Slope –ΔH/R And Intercept ΔS/R. Enthalpy And Free Energy Changes For V(V) Complexes Were Found In The Order Of M L > M L2 > M L3 With A Negative Sign. Whereas Entropy Change Was Found To Be In The Same Order But Positive, For Vanadium (IV) Acetohydroxamic Acid Complexes, The Order Of ΔG, ΔH And ΔS Was M L > ML3 > ML2. The ΔS Is Most Positive For A 1:1 Complex, While ΔG And ΔH Are More Negative For The Same.

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APA: Copy

ALI, K., FATIMA, N., & MAGHSOUD, Z.T.. (2005). COMPARATIVE STUDY OF THERMODYNAMIC PARAMETERS OF VANADIUM (IV) AND (V) ACETOHYDROXAMATE COMPLEXES. SCIENTIA IRANICA, 12(3), 311-317. SID. https://sid.ir/paper/289283/en

Vancouver: Copy

ALI K., FATIMA N., MAGHSOUD Z.T.. COMPARATIVE STUDY OF THERMODYNAMIC PARAMETERS OF VANADIUM (IV) AND (V) ACETOHYDROXAMATE COMPLEXES. SCIENTIA IRANICA[Internet]. 2005;12(3):311-317. Available from: https://sid.ir/paper/289283/en

IEEE: Copy

K. ALI, N. FATIMA, and Z.T. MAGHSOUD, “COMPARATIVE STUDY OF THERMODYNAMIC PARAMETERS OF VANADIUM (IV) AND (V) ACETOHYDROXAMATE COMPLEXES,” SCIENTIA IRANICA, vol. 12, no. 3, pp. 311–317, 2005, [Online]. Available: https://sid.ir/paper/289283/en

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