从VSEPR模型到LCP模型:价层电子对互斥理论的形成与发展

From VSEPR Model to LCP Model:The Formation and Development of Valence Shell Electron Pair Repulsion Theory

考察价层电子对互斥理论(VSEPR模型)的发展史可知,1916年路易斯提出的"原子立方体"假设为VSEPR模型的形成奠定了基础。1940年西德威克和鲍威尔的假设进一步促进了VSEPR模型的形成。1957年吉莱斯皮和尼霍尔姆拓展了西德威克和鲍威尔的假设,并于1963年正式提出价层电子对互斥理论的概念。至1988年,吉莱斯皮提出配体紧密堆积模型(LCP模型)弥补了VSEPR模型的不足。价层电子对互斥理论是一种定性研究分子结构的理论,它的提出开启了化学家定性研究分子结构的历程。

It can be seen from the history of VSEPR model that the hypothesis of"The Cubical Atom"proposed by Lewis in 1916 laid the foundation for the formation of VSEPR model.In 1940,Sidgwick and Powell’s hypothesis further promoted the formation of the VSEPR model.In 1957,Gillespie and Nyholm expanded the hypothesis of Sidgwick and Powell,and formally put forward the concept of Valence Shell Electron Pair Repulsion theory in 1963.To 1988,Gillespie proposed the ligand close packing model(LCP model)to make up for the shortcomings of the VSEPR model.The theory of Valence Shell Electron Pair Repulsion is a kind theory for qualitative study of molecular structure,which opens up the process of qualitative study of molecular structure by chemists.