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利用研究复杂晶体化学键的理论方法，计算了一组ABO4型基质晶体的结构参数和化学键参数，发现Nd3+离子的总晶场劈裂能ΔE与晶体的平均共价性有线性关系．
The structural parameters and chemical bond parameters of a group of ABO4 matrix crystals were calculated by the theoretical method of studying complex crystal chemical bonds. It was found that the total crystal field splitting energy ΔE of Nd3 + ions has a linear relationship with the average covalence of crystals.