环状烃及多面体烃的张力评价及化学键研究

Review of Strain evaluation and Study on chemical bonds for cyclic, bicyclic, tricyclic and polyhed ral hydrocarbons

综述了张力学说的历史发展及研究现状，对各种评价环状烃及多面体烃张力的方法（如热化学法、键径及键偏离参数法、Ｈｅｌｌｍａｎｎ－Ｆｅｙｎｍａｎ刀在张力有机分子及化学键研究中的应用等）进行了总结；提出了表征环状有机分子中张力与弯键特性的一系列计算公式。指出Ｈ－Ｆ力为从力途径研究有机分子的电子结构、张力、成键特征、反应性能、张力与稳定性的关系等化学问题提出了一种新的手段。

The historical devlopments and recent studies of strain evaluation for strained organic molecules were reviewed in detail.Varied methods to evaluate molecular strain such as thermochem-istry, bond path, bond deviation index and the applications of Hellmann-Feynman force in studing chemical bond for strained organic molecules were summarized. A series of calculation formulae to char-acterize bent bonds,strain and bonding bchavior of strained donqiing behaviororganic molecules were proposed. It could be concluded that the more efficient way to study electronic structure,strain,bonding behavior,reaction properties,relationship between molecular strain and stability of strained organic molecules is by means of force instead of energy.