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本文借助于电负性Ｉ和有效主量子数ｎｉ＊定义了有效价电子数Ｚｉ′。由Ｚｉ′、ｎ＊ｉ及成键电子数ｍｉ定义的原子结构参数δｉ和分子结构参数Ｘ被计算。发现ＡｍＢｎ型分子的Ｘ与它们的总键能，标准摩尔生成焓分别有令人满意的线性关系。
In this paper, the number of effective valence electrons Zi ’is defined by means of the electronegativity I and the effective principal quantum number ni *. The atomic structure parameter δi and the molecular structure parameter X defined by Zi ’, n * i and the number of bonding electrons mi are calculated. It has been found that the AmBn-type molecules have a satisfactorily linear relationship with their total bond energy and the standard molar enthalpy of formation, respectively.