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Global and Local Partitioning of the Charge Transferred in the Parr-Pearson Model

机译:在Parr-Pearson模型中转移的电荷全球和本地划分

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摘要

Through a simple proposal, the charge transfer obtained from the cornerstone theory of Parr and Pearson is partitioned, for each reactant, in two channels: an electrophilic, through which the species accepts electrons, and the other, a nucleophilic, where the species donates electrons. It is shown that this global model allows us to determine unambiguously the charge-transfer mechanism prevailing in a given reaction. The partitioning is extended to include local effects through the Fukui functions of the reactants. This local model is applied to several emblematic reactions in organic and inorganic chemistry, and we show that besides improving the correlations obtained with the global model it provides valuable information concerning the atoms in the reactants playing the most important roles in the reaction and thus improving our understanding of the reaction under study.
机译:通过简单的提议,从Parr和Pearson的基石理论获得的电荷转移为每个反应物,在两个通道中分配:电泳,物种通过其所接受电子,另一个通道,通过该物种捐赠电子的亲液,而另一个通道 。 结果表明,该全局模型使我们能够明确地确定在给定反应中持续的电荷转移机制。 分区扩展到包括通过反应物的福禄功能的局部效应。 该本地模型应用于有机和无机化学中的几个象征性反应,并且除了改善与全球模型获得的相关性之外,它还提供了关于反应物中的原子的有价值的信息,并在反应中发挥最重要的作用,从而改善我们的反应物 了解研究中的反应。

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