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Charge decomposition analysis of the electron localizability indicator: A bridge between the orbital and direct space representation of the chemical bond

机译:电子可定位性指示器的电荷分解分析:化学键的轨道和直接空间表示之间的桥梁

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摘要

The novel functional electron localizability indicator is a useful tool for investigating chemical bonding in molecules and solids. In contrast to the traditional electron localization function (ELF), the electron localizability indicator is shown to be exactly decomposable into partial orbital contributions even though it displays at the single-determinantal level of theory the same topology as the ELF. This approach is generally valid for molecules and crystals at either the single-determinantal or the explicitly correlated level of theory. The advantages of the new approach are illustrated for the argon atom, homonuclear dimers N-2 and F-2, unsaturated hydrocarbons C2H4 and C6H6, and the transition-metal-containing molecules Sc-2(2+) and TiF4.
机译:新型功能性电子定位剂是研究分子和固体中化学键的有用工具。与传统的电子本地化功能(ELF)相比,即使在理论的单确定性水平上显示与ELF相同的拓扑结构,电子本地化指标也显示可完全分解为部分轨道贡献。这种方法通常对于单决定论或显着相关的理论水平的分子和晶体都是有效的。对于氩原子,同核二聚体N-2和F-2,不饱和烃C2H4和C6H6以及含过渡金属的分子Sc-2(2+)和TiF4,说明了新方法的优点。

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