| Mechanism of the Deaquation of Aquopentaaminocobalt(III) Bromide |
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| 作者姓名： | 马礼敦 程广辉 吴宏翔 林涵毅 沈孝良 施国顺 |
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| 作者单位： | MA，Li-Dun CHENG，Guang-Hui WU，Hong-Xiang LIN，Han-Yi SHEN，Xiao-Liang SHI，Guo-ShunResearch Center for Analyses and Measurements，Fudan University，Shanghai 200433，China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina (No.2 890 12 2 ) |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｓｏｌｉｄ ｐｈａｓｅｄｅａｑｕａｔｉｏｎ ａｎａｔｉｏｎｒｅａｃｔｉｏｎＭ(ＮＨ3 ) 5(Ｈ2 Ｏ) ]Ｘ3 → Ｍ(ＮＨ3 ) 5Ｘ]Ｘ2 +Ｈ2 Ｏ(Ｍ =Ｃｏ3 + ,Ｃｒ3 + ｏｒＲｕ3 + ａｎｄＸ =Ｃｌ- ,Ｂｒ- ｏｒＮＣＳ- )ｈａｓｂｅｅｎｗｉｄｅｌｙｓｔｕｄｉｅｄｓｉｎｃｅｔｈｅｎｉｎｅｔｅｅｎｓｉｘｔｉｅｓ .Ｔｈｅｔｈｅｒｍａｌａｎｄｋｉｎｅｔｉｃｐａｒａｍｅｔｅｒｓｈａｖｅｂｅｅｎｃａｌｃｕｌａｔｅｄａｎｄｔｈｅｄｉｆｆｅｒｅｎｔｍｅｃｈａｎｉｓｍｈａｓｂｅｅｎｐｒｏｐｏｓｅｄａｎｄｄ…
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Mechanism of the Deaquation of Aquopentaaminocobalt(III) Bromide |
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| MA,Li-Dun CHENG,Guang-Hui WU,Hong-Xiang LIN,Han-Yi SHEN,Xiao-Liang SHI,Guo-ShunResearch Center for Analyses and Measurements,Fudan University,Shanghai ,China.Mechanism of the Deaquation of Aquopentaaminocobalt(III) Bromide[J].Chinese Journal of Chemistry,2002(4). |
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| Authors: | MA Li-Dun CHENG Guang-Hui WU Hong-Xiang LIN Han-Yi SHEN Xiao-Liang SHI Guo-ShunResearch Center for Analyses and Measurements Fudan University Shanghai China |
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| Institution: | MA,Li-Dun CHENG,Guang-Hui WU,Hong-Xiang LIN,Han-Yi SHEN,Xiao-Liang SHI,Guo-ShunResearch Center for Analyses and Measurements,Fudan University,Shanghai 200433,China |
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| Abstract: | There are two theories, S N1 and S N2, for the mechanism of the deaquation of aquopentaamincobalt(III) bromide (AAC-B). Both of the theories are supported by some experimental and calculated data. But there are not any experiments to determine directly the structure of the intermediates at different reaction time. In this paper the structures of the intermediates at different reaction time in deaquation-anation of AACB were determined by extended X-ray absorption fine structure (EXAFS) and the reaction process was studied by the combination of X-ray powder diffraction and EXAFS. It was demonstrated that the deaquation-anation of AACB obeys the S N2 theory. |
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| Keywords: | Mechanism deaquation aquopentaamincobalt(III) bromide EXAFS XPD |
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