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首页> 外文期刊>Chemical Physics Letters >Chemical bonding mechanisms of n-butane probed by the core orbitals of conformational isomers in r-space and k-space
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Chemical bonding mechanisms of n-butane probed by the core orbitals of conformational isomers in r-space and k-space

机译:r空间和k空间中构象异构体的核心轨道探测的正丁烷化学键合机理

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摘要

Core shells of molecules are largely ignored in quantum mechanical calculations of organic compounds. A novel means of studying chemical bonding mechanisms using core molecular orbitals (MOs) of n-butane conformational isomers is presented in r-space and k-space. It is demonstrated that the central MOs are more sensitive to energetic properties in real space. In contrast, the terminal MO pair is more sensitive in reciprocal space, reflecting the fact that the equivalent core MOs caused by orbital energy degeneracy in r-space can be differentiated in k-space. This work provides a unique and novel channel to study isomerization and suggests that a comprehensive understanding of the bonding mechanisms of molecules can be better achieved using information from both r-space and k-space. (C) 2003 Elsevier B.V. All rights reserved. [References: 30]
机译:在有机化合物的量子力学计算中,分子的核壳在很大程度上被忽略了。在r空间和k空间中,提出了一种使用正丁烷构象异构体的核心分子轨道(MOs)研究化学键合机理的新颖方法。结果表明,中央MO对现实空间中的能量性质更为敏感。相反,末端MO对在倒数空间中更为敏感,这反映了这样一个事实,即由r空间中的轨道能量简并性引起的等效核心MO可以在k空间中区分。这项工作为研究异构化提供了独特而新颖的渠道,并建议使用r空间和k空间的信息可以更好地全面理解分子的键合机理。 (C)2003 Elsevier B.V.保留所有权利。 [参考:30]

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