| 逐级加合均分法计算基团电负性公式的改进 |
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| 引用本文： | 戴益民,聂长明.逐级加合均分法计算基团电负性公式的改进[J].南华大学学报(自然科学版),2007,21(2):64-67. |
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| 作者姓名： | 戴益民 聂长明 |
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| 作者单位： | 长沙理工大学,化学与环境工程学院,湖南,长沙,410076;南华大学,化学化工学院,湖南,衡阳,421001 |
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| 摘 要： | 在电负性均衡原理基础上,对逐级加合均分法计算基团电负性公式进行改进,将常用基团的电负性进行重新计算,结果表明新方法不仅能有效区分对称型基团(-XY和-YX)的电负性,而且由此得到的基团电负性与目前被广泛接受的几套基团电负性颇为一致,且呈明显的规律性变化.
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| 关 键 词： | 基原子 电负性均衡原理 基团 电负性 改进 |
| 文章编号： | 1673-0062（2007）02-0064-04 |
| 收稿时间： | 2007-03-01 |
| 修稿时间： | 2007-03-01 |
Revised Formula for Gradual Sum Even Way to Calculate Group Electronegativity |
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| DAI Yi-min,NIE Chang-ming.Revised Formula for Gradual Sum Even Way to Calculate Group Electronegativity[J].Journal of Nanhua University:Science and Technology,2007,21(2):64-67. |
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| Authors: | DAI Yi-min NIE Chang-ming |
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| Institution: | 1. School of Chemical and Environmental Engineering, Changsha University of Science and Technology, Changsha, Hunan 410076, China ;2. School of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan 421001, China |
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| Abstract: | According to the principle of electronegativity equilibrium,we revised the formula for gradual sum even way to calculate electronegativities of groups,and calculated some often-used electronegativities of groups by the revised formula in this paper.The calculated results not only conform very much to the several scales of group electronegativities which are widely accepted,but also can distinguish electronegativities of symmetrical groups(-XY and-YX),indicating regular changes. |
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| Keywords: | fundamental atom principle of electronegativity equilibrium group electronegativity revision |
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