摘要
从分子的图型特点和化学特征出发提出了一种新的拓扑指数 ,计算结果表明 ,它具有良好的相关性。
On the based of figure traits and chemical characteristies of molecular, a novel boodparameter , the topological index Y M is proposed . This paper obtains a lot of linear regression equations of the relatlonship between standard for matlve enthalpy -△ fH m of rave earth A 2B 3 type and topological index Y M are obtained -△ fH m =416.67Y M-1609.07(Kimor) these equations with high correlation coefficlents (0.999) can be used for the accurate description of the progressive changes of seandard formative enthalpy for the compounds.
