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Electron localization function from density components.

Julien Pilmé1

  • 1Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire de Chimie Théorique, CC 137 - 4, place Jussieu F. 75252 PARIS CEDEX 05 -, France.

Journal of Computational Chemistry
|November 19, 2016
PubMed
Summary

This study introduces a new method to analyze electron localization by decomposing the Electron Localization Function (ELF) into partial contributions. This approach enhances the understanding of electronic properties in various systems.

Keywords:
ELFFukuidecompositionlocalizationnucleophilesigma/pispin-density

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Area of Science:

  • Quantum Chemistry
  • Materials Science
  • Computational Chemistry

Background:

  • The Electron Localization Function (ELF) is a key descriptor of chemical bonding.
  • Analyzing electron localization in complex systems requires advanced methodologies.
  • Existing methods may not fully capture subsystem-specific electronic behaviors.

Purpose of the Study:

  • To develop a novel approach for decomposing the Electron Localization Function (ELF) into partial density contributions.
  • To introduce a new spin-polarized ELF formula applicable to system subsystems.
  • To create a localization function for quantifying electron localization within specific subparts of a system.

Main Methods:

  • Decomposition of the Electron Localization Function (ELF) using kinetic energy densities.
  • Development of a new polarized ELF formula based on subsystem densities.
  • Introduction of a localization function for subpart analysis.

Main Results:

  • A method for decomposing ELF into partial density contributions is presented.
  • A new polarized ELF formula is derived, applicable to any subsystem.
  • A localization function is introduced to measure electron localization in system subparts.
  • The methodology effectively describes electron localization in bonding patterns and local nucleophilic character.

Conclusions:

  • The developed methodology provides a powerful tool for analyzing electron localization in subsystems.
  • This approach enables the description of electronic properties dependent on specific density subparts.
  • The work opens new avenues for studying electronic properties in atoms, molecules, and solids.