关于络离子中的价键,本文并不着眼于金属M与配体L之间是否交换电子,而是考虑自由离子波函数进入化学环境后将如何变化。鉴于自由离子与配位场理论中所用的静电排斥参量B、C以及旋-轨偶合参数ζα的定量计算只有在球对称场中才有意义,故有必要建立球对称场的分子轨道理论。 With regard to the valence bond in the complex ion, this article does not focus on whether electrons are exchanged between the metal M and the ligand L, but on how the free ion wave function changes after it enters the chemical environment. In view of the fact that the quantitative calculation of the electrostatic repulsion parameters B, C and the ζα parameter used in the theory of free ions and ligand fields is only meaningful in the sphere-symmetry field, it is necessary to establish the theory of molecular orbital of a spherical symmetry field.