1958年,Gillesple和Nyholm在总结前人经验的基础上提出了价电子层电子对互斥理论(简称VSEPR理论),为推测分子的空间结构提供了一种简明易行的方法。关于该理论的讨论和介绍,近年来也常见于国内的一些专题文章和教科书。 VSEPR理论把中心原子价层电子对视为分布在中心原子外的球面上的点电荷,根据静电排斥效应和泡利效应,各点电荷在球面上的分布应采取彼此尽量远离的方式才能使斥力最 In 1958, Gillesple and Nyholm proposed the valence electron-electron pair mutual exclusion theory (referred to as VSEPR theory) based on the previous experience, which provides a concise and easy method for speculating the spatial structure of the molecule. The discussion and introduction of this theory are also common in recent years in China and some special articles and textbooks. The VSEPR theory treats the central valence electron pair as the point charge distributed on the sphere outside the central atom. According to the electrostatic repulsion effect and the Pauli effect, the distribution of the charge on the sphere should be taken away from each other as far as possible to make the repulsion most