| 酸碱软硬度的新标度研究 |
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| 引用本文： | 王进贤,刘占祥,等.酸碱软硬度的新标度研究[J].西北师范大学学报,2001,37(2):95-99. |
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| 作者姓名： | 王进贤 刘占祥 |
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| 作者单位： | [1]西北师范大学化学化工学院，甘肃兰州730070 [2]西北师范大学化学化工学院，甘肃兰州73007 |
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| 摘 要： | 简要综述了Lewis酸碱软硬度定量标度的研究进展。在此基础上提出Lewis酸软硬度标度的改进方法，用离子键与共价键力之差（即HSA=Z/r^2i-Z*/r^2c)来计算Lewis酸的软硬性标度；引用新的电负性的计算方法，计算有关元素或基团的电负性（X），并将其结果用为Lewis碱的软硬性标度，扩大了Lewis碱的标度范围。此酸碱软硬度标度结果与Pearson对硬软酸碱的分类基本一致。
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| 关 键 词： | Lewis酸碱 软硬度 定量标度 离子键 共价键 电负性 计算方法 |
| 文章编号： | 1001-988Ⅹ(2001)02-0095-05 |
| 修稿时间： | 2000年5月30日 |
Study on the new scale of
hardness-softness for Lewis acid and bases |
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| WANG Jin xian,LIU Zhan xiang,HU Yu lai.Study on the new scale of
hardness-softness for Lewis acid and bases[J].Journal of Northwest Normal University Natural Science (Bimonthly),2001,37(2):95-99. |
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| Authors: | WANG Jin xian LIU Zhan xiang HU Yu lai |
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| Abstract: | The reaserch advance in quantitative scale of hardness softness of Lewis acid and bases are reviewed briefly.On the basis of this,an improved method for scale of hardness softness has been suggested. HS A= Z/r 2 i -Z * /r 2 c is used as the scale of the hardness softness for acid.Using the new calculating method for electronegativity,the electronegativity( X ) of the ions and groups are calculated.The result regarded as the scale of hardness softness for base broadens the scale scope of Lewis base.The result basically coincided with the classify for hard soft acid and base of Pearson. |
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| Keywords: | Lewis acid base hardness softness quantitative scale |
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