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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 30, Number 2
JKCSEZ 30(2)
April 20, 1986

Title	Kinetic Studies on the Oxidation of Oxalate Complex of Oxomolybdenum (Ⅴ) of Hydrogen Chromate Ion 수소크롬산 (Ⅵ) 이온에 의한 몰리브덴 (Ⅴ) 의 옥살산착물의 산화반응
Author	Chang-Yong Kwon, Chang-Su Kim 권창룡, 김창수
Keywords
Abstract	수소크롬산이온에 의한 [Mo2O4(C2O4)2(OH2)2]2-의 산화는 [Mo2O5(C2O4)2(OH2)2]2-를 생성한다. 수소크롬산이온과 [Mo2O4(C2O4)2(OH2)2]2-의 반응에 대한 화학양론은 3Mo2Ⅴ + 2CrⅥ ↔ 3Mo2Ⅵ + 2CrⅢ와 같다. 관찰된 속도상수는 [H+]2에 의존한다. CrⅥ는 CrⅤ와 CrⅣ를 거쳐서 CrⅢ로 일전자씩 연속적으로 변화한다. 이들 반응에 대한 상세한 메카니즘이 제시되며 이에 대해서 논의된다. 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.
Page	231 - 236
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