考虑配体合成晶场势能的中心对称部份影响,提出中心金属离子价电子的一种部份分子轨道,用它作为(MnX_4)~(2-)络离子的径向波函数。计算了晶场参量和Slater—Condon 参量,得到的四重态吸收谱和(MnBr_4)~(2-)及(MnCl_4)~(2-)实验值一致,这种中心对称部份分子轨道使拟合参量减到最少。说明它能反映出离子键络合物中某些共价效应。 Taking into account the central symmetry of the potential energy of the synthesized crystal field, a partial orbitals of valence electron of central metal ion is proposed and used as the radial wave function of (MnX_4) ~ (2-) complex ion. The calculated parameters of the crystal field and the Slater-Condon parameter are consistent with the experimental values ​​of (MnBr_4) ~ (2-) and (MnCl_4) ~ (2-). The central symmetry of some molecular orbital Combined parameters to minimize. Show that it can reflect some of the covalent effects in the ionic bond complex.