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KMID : 1059519860300020231
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Journal of the Korean Chemical Society
1986 Volume.30 No. 2 p.231 ~ p.236
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Kinetic Studies on the Oxidation of Oxalate Complex of Oxomolybdenum (V) of Hydrogen Chromate Ion
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Kwon Chang-Yong
Kim Chang-Su
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Abstract
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Oxidation of [Mo2O4(C2O4)2(OH2)2]2- with hydrogen chromate yields the molybdenum (Ⅵ) complex, [Mo2O5(C2O4)2(OH2)2]2-. Stoichiometry for the reaction of [Mo2O4(C2O4)2(OH2)2]2- with hydrogen chromate are expressed as 3Mo2Ⅴ + 2CrⅥ ↔ 3Mo2Ⅵ + 2CrⅢ. Observed rate constants are dependent on [H+]2. The kinetic data are consistent with a mechanism in which three successive single-electron steps convert CrⅥ to CrⅢ by way of intermediate CrⅤ and CrⅣ. Mechanism of the reaction are presented and discussed.
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