| 辅酶B12模型化合物生成与解离电化学研究(II) |
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| 引用本文： | 郑国栋,阎雁,王英,黄楚宝,高德,安庆大. 辅酶B12模型化合物生成与解离电化学研究(II)[J]. 物理化学学报, 1994, 10(9): 831-837. DOI: 10.3866/PKU.WHXB19940912 |
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| 作者姓名： | 郑国栋 阎雁 王英 黄楚宝 高德 安庆大 |
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| 作者单位： | Department of Chemistry,Jilin University,Changchun 130023,Department of Chemical Engineering,Hunan University,Changsha 410082,Dalian Institute of Light Industry,Dalian 116034 |
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| 基金项目： | 国家自然科学基金，国家教委博士点基金 |
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| 摘 要： | 用电化学方法研究了钴卟啉与多种直链溴代烷的相互作用，表明１价钴卟啉可以与溴代烷形成有σ钴－碳键的辅酶Ｂ１２模型化合物。计算了Ｉ价钴卟啉与各种直链溴代烷的加合速率常数。详细讨论了直链烷烃的链长与模型化合物生成速率及烷基钴卟啉负离子稳定性的关系。讨论了几种模型化合物的优劣。
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| 关 键 词： | 辅酶B12模型化合物 钴卟啉 电化学 |
| 收稿时间： | 1993-08-16 |
| 修稿时间： | 1994-05-03 |
Studies on the Production and Dissociation of Coenzyme B12 Models by Electrochemistry and Spectroelectrochemistry(II) |
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| Zheng Guodong ,Yan Yan ,Wang Ying, Huang Chubao. Studies on the Production and Dissociation of Coenzyme B12 Models by Electrochemistry and Spectroelectrochemistry(II)[J]. Acta Physico-Chimica Sinica, 1994, 10(9): 831-837. DOI: 10.3866/PKU.WHXB19940912 |
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| Authors: | Zheng Guodong Yan Yan Wang Ying Huang Chubao |
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| Affiliation: | Department of Chemistry,Jilin University,Changchun 130023|Department of Chemical Engineering,Hunan University,Changsha 410082|Dalian Institute of Light Industry,Dalian 116034 |
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| Abstract: | The reaction of CoTPP (cobalt tetrophenylporphyrin) with various alkyl bromides [CH3CH2Br; CH3(CH2)3Br; CH3(CH2)7Br; CH3(CH2)11Br; CH3(CH2)15Br] were studied by cyclic voltammogram. The reaction of [Co(I )TPP]- with alkyl bromide formed coenzym B12 moddel compound containing a cobalt-carbon bond. The formation rate constants are 2.43; 16.73; 28.30; 35.05; 42.36 mol-1•L•s-1 respectively. The relation between the chain length of alkyl bromide the rate constants and the stability of alkyl cobalt porphyrin negtive ion were discussed. |
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| Keywords: | Coenzyme B_(12) model compound Electrochemistry Cobalt prphyrin |
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