| o-，m-，p-IC6H4OCH3的电子结构和取代基效应 |
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| 引用本文： | 佟胜睿,王炜罡,马春平,葛茂发,王殿勋.o-，m-，p-IC6H4OCH3的电子结构和取代基效应[J].中国科学B辑,2009,39(11):1469-1475. |
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| 作者姓名： | 佟胜睿 王炜罡 马春平 葛茂发 王殿勋 |
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| 作者单位： | 中国科学院化学研究所, 北京分子科学国家实验室, 分子动态与稳态结构国家重点实验室, 北京 100190 |
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| 基金项目： | 国家自然科学基金（批准号：20673123）资助,特此致谢. |
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| 摘 要： | 采用紫外光电子能谱（UPS）手段结合理论计算研究了有机卤化物o-，m-，p-IC6H4OCH3的电子结构和取代基效应．在碘原子和甲氧基两个供电子基团的共同作用下，这三种碘代苯甲醚的第一电离能均低于相应的碘苯和苯甲醚．通过取代基效应研究表明碘代苯甲醚为富电子体，因此在有机合成反应中具有较高的反应活性．
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| 关 键 词： | 电子结构 取代基效应 紫外光电子能谱 反应活性 |
| 收稿时间： | 2009-05-03 |
| 修稿时间： | 2009-06-21 |
Electron structure and substituent effects of o-,m-,p-IC6H4OCH3 iodoanisoles |
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| TONG ShengRui,WANG WeiGang,MA ChunPing,GE MaoFa,WANG DianXun.Electron structure and substituent effects of o-,m-,p-IC6H4OCH3 iodoanisoles[J].Science in China(Series B),2009,39(11):1469-1475. |
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| Authors: | TONG ShengRui WANG WeiGang MA ChunPing GE MaoFa WANG DianXun |
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| Institution: | ( Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China) |
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| Abstract: | The electronic structures and substituent effects of o-, m-, and p- iodoanisoles were measured by ultraviolet photoelectron spectroscopy （UPS）. Combined the empirical arguments and theoretical methods, the observed UPS bands were interpreted. Owing to the effects of electron donating nature of both substituents, the first ionization potential of three iodoanisoles are lower than that of iodobenzene and anisole. The two substituents of iodoanisoles lead to the electronrich of the molecules, which might contribute to the high reactivity of iodoanisoles in a number of organic reactions. |
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| Keywords: | electronic structures substituent effects ultraviolet photoelectron spectroscopy reactivity |
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