| 直键与弯键的对称性判据 |
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| 引用本文： | 湛昌国,王琼林,刘幸福.直键与弯键的对称性判据[J].化学研究与应用,1991(3). |
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| 作者姓名： | 湛昌国 王琼林 刘幸福 |
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| 作者单位： | 华中师范大学化学系，华中师范大学化学系，华中理工大学生物工程系 武汉 430070，武汉 430070，武汉 430074 |
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| 摘 要： | 一穹键的提出人们认为,杂化轨道(HAO)角函数的最大值方向(亦即HAO的方向)指向与之键合的原子,这样形成的化学键称为“直键”。但环丙烷分子中的三个碳原子构成三元环,有60°的键角。而任意两个正交的S-P杂化轨道之间的夹角θ都不可能小于90°,因而形成C-C键的HAO,不可能指向键合原子,环上的C-C键不可能是直键,而是“弯键”(BentBond)。通常,人们认为张力分子环上的键是弯键,其他的键为直键。
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| 关 键 词： | 弯键 判据 杂化 杂化轨道 最大重迭标准 |
A SYMMETRY CRITERION FOR STRAIGHT OR BENT BOND |
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| Zhan Changguo,Wang Qionglin,Liu Xinfu.A SYMMETRY CRITERION FOR STRAIGHT OR BENT BOND[J].Chemical Research and Application,1991(3). |
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| Authors: | Zhan Changguo Wang Qionglin Liu Xinfu |
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| Institution: | Zhan Changguo,Wang Qionglin,Liu Xinfu Department of Chemistry Central China Normal University Wuhan,430070,P. R. China Department of Biology in Engineering Huazhong University of Science and Technology Wuhan,430074. P. R. China |
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| Abstract: | Based on the principle of maximum overlapping the possibility that there exist bent bonds in some molecules has been clarified. Furthermore, a generaliaed symmetry criterion has been sug- gested for using molccular to judge whether a chemical bond is a straight or a bent one. This sy mmetry criterion is applicable to any molecule regardless of which criterion of bond strength is em ployed concerned. |
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| Keywords: | Bent bond Symmetry criterion Hybridization Hybrid orbital Principle of maximum overlapping |
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