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Kinetics and mechanism of meso -tetraphenylporphyrin iron(iii) chloride catalysed oxidation of indole-3-acetic acid by peroxomonosulphate
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نویسنده
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kungumathilagam d. ,karunakaran k.
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منبع
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journal of chemistry - 2013 - دوره : 2013 - شماره : 0
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چکیده
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Mechanistic study on meso-tetraphenylporphyrin iron(iii) chloride (tpp) catalysed oxidation of indole-3-acetic acid by peroxomonosulphate (oxone) in aqueous acetonitrile medium has been carried out. the reaction follows a first order with respect to both substrate and oxidant. the order with respect to catalyst was found to be fractional. the order of reaction with respect to catalyst varies with a concentration of catalyst. increase in percentage of acetonitrile decreased the rate. the reaction fails to initiate polymerization,and a radical mechanism is ruled out. activation and thermodynamic parameters have been computed. a suitable kinetic scheme based on these observations is proposed. significant catalytic activity is observed for the reaction system in the presence of tpp. © 2013 durairaj kungumathilagam and kulanthaivel karunakaran.
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آدرس
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department of chemistry,sona college of technology, India, department of chemistry,sona college of technology, India
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Authors
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