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International Journal of Chemical and Biomedical Science

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Kinetics and Mechanism of Electron Transfer to Platinum(IV) by Cadaverine in Perchloric Acid Medium

International Journal of Chemical and Biomedical Science
Vol.4 , No. 1, Publication Date: Jan. 8, 2018, Page: 1-6

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Authors

[1]	Fawzy A., Chemistry Department, Faculty of Applied Sciences, Umm Al-Qura University, Makkah Al-Mukarramah, Saudi Arabia; Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt.
[2]	Zaafarany I. A., Chemistry Department, Faculty of Applied Sciences, Umm Al-Qura University, Makkah Al-Mukarramah, Saudi Arabia.
[3]	Althagafi I. I., Chemistry Department, Faculty of Applied Sciences, Umm Al-Qura University, Makkah Al-Mukarramah, Saudi Arabia.

Abstract

The kinetics of platinum(IV) oxidation of cadaverine (CAD) in perchloric acid medium was studied at a constant ionic strength of 2.0 mol dm^-3 and at 25°C. The oxidation reaction was followed spectrophotometrically. The reaction exhibited a first order kinetics in [Pt^IV] and less than unit order dependences with respect to [CAD] and [H⁺]. Increasing ionic strength and dielectric constant decreased the oxidation rate. The final oxidation products of cadaverine were identified as 5-aminopentanal and ammonia. The oxidation mechanism was proposed and the appropriate rate-law expression was deduced. The activation parameters of the second order rate constant were evaluated and discussed.

Keywords

Oxidation, Kinetics, Mechanism, Cadaverine, Platinum (IV)

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