首页> 外文期刊>Chemistry: A European journal >The Experimental Electron Density Distribution in the Complex of (E)-1,2-Bis(4-pyridyl)ethylene with 1,4-Diiodotetrafluorobenzene at 90 K
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The Experimental Electron Density Distribution in the Complex of (E)-1,2-Bis(4-pyridyl)ethylene with 1,4-Diiodotetrafluorobenzene at 90 K

机译:(E)-1,2-双(4-吡啶基)乙烯与1,4-二碘四氟苯的络合物在90 K时的实验电子密度分布

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摘要

The experimental electron density of the donor-acceptor complex of (E)-1,2-bis(4-pyridyl)ethylene (bpe) with 1,4-diiodotetrafluorobenzene (F_4DIB) at 90 K has been determined with the a spherical atom formalism and analyzed by means of the topological theory of molecular structure. The bpe and F_4DIB molecules are connected by intermolecular I…N bonds into infinite 1D chains. F…H bonds link these chains together to form the crystal assembly. The topological analysis reveals that the C-I bond is of the "closed shell" type. Its bond-critical properties run parallel to those found in metal-metal and metal-ligand bonds of organometallic compounds. the integrated net charges show that the I…N halogen bond has an essentially electrostatic nature, F…F, F…C, and C…C intermolecular interactions, for which a bond path was found, contribute to reinforce the crystal structure.
机译:用球形原子形式确定了(E)-1,2-双(4-吡啶基)乙烯(bpe)与1,4-二碘四氟苯(F_4DIB)的供体-受体配合物在90 K的实验电子密度并借助分子结构的拓扑理论进行了分析。 bpe和F_4DIB分子通过分子间I…N键连接成无限一维链。 F…H键将这些链连接在一起以形成晶体组件。拓扑分析表明,C-1键是“封闭壳”型的。它的键关键性质与有机金属化合物的金属-金属和金属-配体键中发现的性质平行。积分的净电荷表明I…N卤素键具有基本的静电性质,F…F,F…C和C…C的分子间相互作用(发现了键路径)有助于增强晶体结构。

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