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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Computing the Fukui Function in Solid-State Chemistry: Application to Alkaline Earth Oxides Bulk and Surfaces
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Computing the Fukui Function in Solid-State Chemistry: Application to Alkaline Earth Oxides Bulk and Surfaces

机译:在固态化学中计算福井功能:应用于碱土氧化物散装和表面

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摘要

Fukui functions (FFs) are chemical descriptors that are useful to explain the reactivity of systems toward electron transfer. Whereas they have been widely employed for molecules, their application to extended systems is scarce. One of the reasons for the limited development of such analysis in solids is the improper evaluation of FFs in the usual computational approaches based on density functional theory and periodic boundary conditions. In this work we compare the available approaches and propose a new method based on the interpolation of partially charged systems that mitigates some of the problems encountered. We discuss the reactivity of alkaline earth oxides (MgO, CaO, SrO, and BaO) in terms of the FF analysis, providing a robust way to account for the higher reactivity of surface oxygen sites compared with bulk sites.
机译:福井功能(FFS)是用于解释系统对电子转移的反应性的有用的化学描述符。 虽然它们已被广泛用于分子,但它们对扩展系统的应用是稀缺的。 在固体中有限发展的原因之一是基于密度泛函理论和周期性边界条件的通常计算方法对FF的评估不当。 在这项工作中,我们比较可用的方法,并根据部分充电系统的插值提出了一种新的方法,这些方法减轻了一些遇到的一些问题。 我们在FF分析方面讨论碱土绿素氧化物(MgO,CaO,SrO和BaO)的反应性,提供了稳健的方法,以考虑与散装位点相比的表面氧气部位的更高反应性。

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