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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Estimation of C-C Bond Dissociation Enthalpies of Large Aromatic Hydrocarbon Compounds Using DFT Methods
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Estimation of C-C Bond Dissociation Enthalpies of Large Aromatic Hydrocarbon Compounds Using DFT Methods

机译:使用DFT方法估算大型芳烃化合物的C-C键离解焓

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摘要

Four density-functional methods (B3LYP, B3PW91, MPW1PW91, and B3P86) are employed to compute the C-C homolytic bond dissociation enthalpies (BDE) of a set of aromatic hydrocarbons related to coal structures with aliphatic linkages. In comparison with the available experimental data, the B3P86 method can provide reasonably reliable BDE values for these model compounds. The BDF values for large aromatic hydrocarbon systems of interest are computed, and the substituent effects are discussed.
机译:四种密度泛函方法(B3LYP,B3PW91,MPW1PW91和B3P86)用于计算与具有脂肪族键的煤结构有关的一组芳香烃的C-C均裂键解离焓(BDE)。与可用的实验数据相比,B3P86方法可以为这些模型化合物提供合理可靠的BDE值。计算了大型目标芳烃体系的BDF值,并讨论了取代基的影响。

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