| 用13C的NMR T1研究苯环上甲基的内旋转 |
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| 引用本文： | 谢狄霖,王金山,陈亮,胡玉仙. 用13C的NMR T1研究苯环上甲基的内旋转[J]. 高等学校化学学报, 1985, 6(5): 447 |
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| 作者姓名： | 谢狄霖 王金山 陈亮 胡玉仙 |
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| 作者单位： | 1. 北京师范大学无线电电子学系;2. 山西大学化学系 |
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| 摘 要： | 提出了通过对样品进行邻位取代和间位取代以从实验上测定自旋-内旋转弛豫速率的处理方法.在28-90℃的温度范围内测量了邻二甲苯和间二甲苯的甲基碳的T1和NOE因子.分离得间二甲苯上甲基碳的自旋-内旋转弛豫速率和自旋-整体旋转弛豫速率,并计算得甲基的内旋转速率.
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| 收稿时间： | 1983-12-21 |
Studies on Internal Rotation of Methyl in Substituted Benzene by Using 13C NMR Spin-lattice Relaxation Time |
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| Xie Dilin,Wang Jinslian,Chen Liang,Hu Yu xian. Studies on Internal Rotation of Methyl in Substituted Benzene by Using 13C NMR Spin-lattice Relaxation Time[J]. Chemical Research In Chinese Universities, 1985, 6(5): 447 |
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| Authors: | Xie Dilin Wang Jinslian Chen Liang Hu Yu xian |
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| Affiliation: | 1. Department of Eadio Electronice, Beijing Normal University, Beijing;2. Department of Chemisty, Shanxi University, Taiyuan |
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| Abstract: | Amethod for determinating the spin-internal rotation relaxation rate of methyl by ortho-subslituting and meta-substituting the sample ( toluene ) is suggested. Spin-lattice relaxation times ( T1 ) and nuclear Overhauser effect ( NOE ) of 13Cin the methyl of ο-xylene and m-xylene between 28℃ and 90℃ are measured. The spin-whole rotation relaxation rate and spin-internal rotation relaxation rate of 15Cin the methyl of m-xylene are separated, with the internal rotation rate of the methyl calculated. |
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