| Kinetics and Mechanism of Oxidation of Ethylene Glycol Monoethylether by Diperiodatonickelate（IV） in Alkaline Medium |
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| 引用本文： | 单金缓,魏海英,申世刚,孙汉文.Kinetics and Mechanism of Oxidation of Ethylene Glycol Monoethylether by Diperiodatonickelate（IV） in Alkaline Medium[J].中国化学,2003,21(11):1470-1473. |
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| 作者姓名： | 单金缓 魏海英 申世刚 孙汉文 |
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| 作者单位： | [1]CollegeofChemistry＆EnvironmentalScience,HebeiUniversity,Baoding,Hebei071002,China [2]InstituteofCoordinationChemistry,StateKeyLaboratoryofCoordinationChemistry,NanfingUniversity,Nanjing,Jiangsu210093,China |
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| 摘 要： | The kinetics of oxidation of ethylene glycol monoethylether (EGE) by diperiodatonickelate(IV) ion (DPN) was studied by spectrophotometry in alkaline medium. The reaction rate showed first order dependence on Ni(IV) and positive fractional order with respect to EGE. The pseudo-first order rate conslants, kobs increased with the increase of OH^-] and decreased with the increase of IO4^- ]. Added salts had little effect on the rate and no free radical was detected. Based on these,the mechanism including the equilibrium between DPN and EGE was proposed. Furthermore, the activation parameters of the reaction were calculated.
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| 关 键 词： | 动学力 氧化机理 乙基乙二醇单乙醚 二高碘镍酸盐 碱性溶液 氧化还原反应 镍（IV）配合物 |
Kinetics and Mechanism of Oxidation of Ethylene Glycol Monoethylether by Diperiodatonickelate(IV) in Alkaline Medium |
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| SHAN,Jin-Huan WEI,Hai-Ying b SHEN,Shi-Gang a SUN,Han-Wen a a College of Chemistry & Environmental Science,Hebei University,Baoding,Hebei ,China b Institute of Coordination Chemistry,State Key Laboratory of Coordination Chemistry,Nanjing University,Nanjing,Jiangsu ,China.Kinetics and Mechanism of Oxidation of Ethylene Glycol Monoethylether by Diperiodatonickelate(IV) in Alkaline Medium[J].Chinese Journal of Chemistry,2003,21(11):1470-1473. |
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| Authors: | SHAN Jin-Huan WEI Hai-Ying b SHEN Shi-Gang a SUN Han-Wen a a College of Chemistry & Environmental Science Hebei University Baoding Hebei China b Institute of Coordination Chemistry State Key Laboratory of Coordination Chemistry Nanjing University Nanjing Jiangsu China |
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| Affiliation: | SHAN,Jin-Huan WEI,Hai-Ying b SHEN,Shi-Gang a SUN,Han-Wen a a College of Chemistry & Environmental Science,Hebei University,Baoding,Hebei 071002,China b Institute of Coordination Chemistry,State Key Laboratory of Coordination Chemistry,Nanjing University,Nanjing,Jiangsu 210093,China |
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| Abstract: | The kinetics of oxidation of ethylene glycol monoethylether (EGE) by diperiodatonickelate(IV) ion (DPN) was studied by spectrophotometry in alkaline medium. The reaction rate showed first order dependence on Ni(IV) and positive fractional order with respect to EGE. The pseudo-first order rate constants,kobs increased with the increase of and decreased with the increase of . Added salts had little effect on the rate and no free radical was detected. Based on these,the mechanism including the equilibrium between DPN and EGE was proposed. Furthermore,the activation parameters of the reaction were calculated. |
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| Keywords: | diperiodatonickelate(IV) ethylene glycol mono~ethylether redox reaction kinetics and mechanism |
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