【摘要】 由气态原子标准生成焓和键焓,计算了9个杂环化合物的气态标准生成治,所得结果与实验结果相吻合.还用HMO方法计算了它们的共振能,并讨论了共振能、键焓对标准异构化焓的影响.更多还原

【Abstract】 The standard gaseous molar enthalpies of formation of nine different kinds of heterocyclic compounds are obtained from the standard formation enthalpies of the gaseous atoms and bond enthalpies. The results are accord with the experiment datal. The resonance energies of the compounds are also culculated by HMO method. The effect of the resonance energies and bond enthalpies on the standard enthalpies of isomerization is dicussed.更多还原