| 扩孔硅胶担载锰卟啉配合物的催化性能研究 |
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| 引用本文： | 李臻,夏春谷.扩孔硅胶担载锰卟啉配合物的催化性能研究[J].化学学报,2002,60(7):1162-1166. |
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| 作者姓名： | 李臻 夏春谷 |
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| 作者单位： | 中国科学院兰州化学物理研究所,兰州(730000) |
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| 基金项目： | 国家自然科学基金 (Nos .2 97730 5 6 ,2 99330 5 0 )资助项目 |
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| 摘 要： | 通过吸附作用制备了护孔硅胶担载的阳离子锰卟啉配合物MnTMPyP/SG，运用 XPS和DR-UV/vis技术对其进行了表征。将制得的催化剂用于苯乙烯和环己烯的环氧 化反应，考察了反应方式对环氧化产率的影响，结果表明超声辐射有利于环氧产率 的提高。在两种条件下考察了轴向配体对反应的影响，同时还考察了超声辐射下催 化剂的重复使用情况。
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| 关 键 词： | 硅胶 卟啉 锰络合物 环氧化反应 X射线衍射分析 紫外分光光度法 催化反应 |
| 修稿时间： | 2001年10月16 |
Investigation of Catalytic Property of Macroporous Silica-supported Manganese Porphyrin |
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| LI,Zhen XIA,Chun-Gu.Investigation of Catalytic Property of Macroporous Silica-supported Manganese Porphyrin[J].Acta Chimica Sinica,2002,60(7):1162-1166. |
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| Authors: | LI Zhen XIA Chun-Gu |
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| Institution: | State Key Laboratory of Oxo Synthesis & Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou(730000) |
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| Abstract: | A supported Mn-porphyrin catalyst has been prepared by adsorption of the cationic manganese porphyrin MnTMPyP on macroporous silica. The catalyst was characterized by comparison of XPS and DR-UV-vis with that of the same unsupported complexes. The catalytic property for epoxidation of olefins has been investigated under two different reaction manners. The results indicate that ultrasonic irradiation is beneficial for increase of epoxide yield. The influence of axial ligands on epoxidation was also studied. Recycling of MnTMPyP/SG showed a decrease in its activity. But epoxide selectivity was maintained at 100% from the third to the fifth recycling. |
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| Keywords: | macroporous silica supported manganese porphyrin epoxidation |
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