A Local Extension of the Electrophilicity Index Concept

Authors

  • Andrés Cedillo Universidad Autónoma Metropolitana-Iztapalapa
  • Renato Contreras Universidad de Chile

DOI:

https://doi.org/10.29356/jmcs.v56i3.287

Keywords:

Chemical Reactivity, Local Descriptors, Electrophilicity, Density Functional Theory

Abstract

A local measure of the electrophilicity has been recently proposed to analyze the chemical reactivity of several kinds of molecules. In this work a theoretical rationalization of the local extension is proposed following the quantitative definition of the molecular electrophilic power and a variational method for the distribution of the transferred charge. A condensation scheme to atoms or fragments follows from its relation to the Fukui function and the local softness. Differences between these quantities are discussed and they are tested in a model system. The analysis shows that the local electrophilicity is more appropriate to describe differences among a set of substituted molecules.

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Author Biographies

Andrés Cedillo, Universidad Autónoma Metropolitana-Iztapalapa

Departamento de Química

Renato Contreras, Universidad de Chile

Departamento de Química, Facultad de Ciencias

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Published

2017-10-12