| 几类新型含硅唑类化合物1H NMR研究 |
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| 引用本文： | 刘军,任天瑞.几类新型含硅唑类化合物1H NMR研究[J].波谱学杂志,1997,14(2):143-146. |
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| 作者姓名： | 刘军 任天瑞 |
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| 作者单位： | 1. 中国农业大学基础学院应化系, 北京 100094;2. 中国科学院化冶所, 北京 100080 |
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| 摘 要： | 讨论了4种新型含硅唑类化合物的1H NMR谱,它们是1-三甲基硅氧基-1-芳基(叔丁基)-2-唑基乙烷(1:1,2,4-三唑;2:咪唑;3:苯并三唑;4:苯并咪唑).芳基对Me3SiO的化学位移影响很小,而不同唑基屏蔽作用的差异影响Me3SiO的化学位移,其影响的次序为:
此结果得到了分子力学计算的证实.
化合物1中1位次甲基质子的化学位移(δH)与芳基对位取代基的取代基常数σp存在良好的线性关系,
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| 关 键 词： | 1H NMR 唑 屏蔽效应 |
| 收稿时间： | 1996-11-04 |
STUDIES ON ~1H NMR OF SOME AZOLE COMPOUNDS CONTAINING SILICON |
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| Liu Jun, Li Wenming, Wang Mingan,Wang Min and Cheng Fuheng.STUDIES ON ~1H NMR OF SOME AZOLE COMPOUNDS CONTAINING SILICON[J].Chinese Journal of Magnetic Resonance,1997,14(2):143-146. |
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| Authors: | Liu Jun Li Wenming Wang Mingan Wang Min and Cheng Fuheng |
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| Institution: | 1. Department of Applied Chemistry, China Agricultural University, Beijing 10009;2. Institute of Metallurgical Chemistry, Chinese Academy Sciences, Beijing 100080 |
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| Abstract: | 1H NMR of four new kinds of azole compounds containing sillcon were investigated, they are 1-trimethylisilicoNOxy-1-aromatic-2-azole-ethane (Ⅰ:1, 2, 4-triazole; Ⅱ:imidazole; Ⅲ:benzotrizzole;Ⅳ:benzomidazole). The aromatic (R1) group has no obvious influence on δH of Me3SiO; the δH of Me3SiO were affected by shielding effect of different azole groups (R), the order is:
The result has been proved by Molecular Mechanics Calculation.
An good linear relationship between δH of CH and σp was obtained for compound Ⅰ. |
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| Keywords: | ~1H NMR Azole Shielding effect Subustituent effect |
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