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arXiv 1202.5764physics.chem-ph
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Kohn-Sham化学反应性理论中不连续性的影响

Effect of discontinuities in Kohn-Sham-based chemical reactivity theory

M. Hellgren, E. K. U. Gross

摘要:

我们提供了一个新的推导公式的Fukui函数的密度泛函化学反应性理论,其中包括在Kohn-Sham参考系的不连续性。轨道弛豫是根据交换相关(XC)核来描述的,即,的XC势相对于密度的衍生物,它表明,为了正确地测量对亲核试剂的XC内核的不连续性的反应性必须考虑。这一发现的重要性在模型分子系统中得到了说明。

英文摘要:

We provide a new derivation of a formula for the Fukui function of density-functional chemical reactivity theory which incorporates the discontinuities in the Kohn-Sham reference system. Orbital relaxations are described in terms of the exchange-correlation (XC) kernel, i.e., the derivative of the XC potential with respect to the density and it is shown that in order to correctly measure the reactivity toward a nucleophilic reagent a discontinuity of the XC kernel has to be taken into account. The importance of this finding is illustrated in model molecular systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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