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Correlation of delocalization indices and current-density maps in polycyclic aromatic hydrocarbons

机译:多环芳烃中离域指数与电流密度图的相关性

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摘要

Using multicentre delocalization indices, the ring current maps of a large set of polycyclic aromatic hydrocarbons (PAH) are reconstructed and compared with ab initio computations of the same maps in the pseudo-pi version of the ipsocentric approach to magnetic response. The quality of the comparison indicates that both delocalization and ring current approaches capture the same information about the aromatic nature of the PAH. Aromaticity as a global property, requires knowledge of more than single circuits, but the present results suggest no need to introduce a "multidimensional character" for aromaticity.
机译:使用多中心离域指数,可重构大组多环芳烃(PAH)的环电流图,并与等心方法对电磁响应的拟pi版本的相同图的从头算计算进行比较。比较的质量表明,离域方法和环流方法均捕获了有关PAH芳族性质的相同信息。作为全球性的芳香剂,不仅仅需要了解单个回路,但目前的结果表明,无需为芳香性引入“多维特征”。

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