Non-uniform Continuum Model for Solvated Species Based on Frozen-Density Embedding Theory: The Study Case of Solvatochromism of Coumarin 153

Authors

  • Sapana V. Shedge Department of Physical Chemistry, University of Geneva, 30, quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
  • Xiuwen Zhou Department of Physical Chemistry, University of Geneva, 30, quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
  • Tomasz A. Wesolowski Department of Physical Chemistry, University of Geneva, 30, quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland. tomasz.wesolowski@unige.ch

DOI:

https://doi.org/10.2533/chimia.2014.609

Keywords:

Continuum models, Density functional theory, Multi-level simulations, Orbital-free embedding theory, Solvatochromism

Abstract

Recent application of the Frozen-Density Embedding Theory based continuum model of the solvent, which is used for calculating solvatochromic shifts in the UV/Vis range, are reviewed. In this model, the solvent is represented as a non-uniform continuum taking into account both the statistical nature of the solvent and specific solute–solvent interactions. It offers, therefore, a computationally attractive alternative to methods in which the solvent is described at atomistic level. The evaluation of the solvatochromic shift involves only two calculations of excitation energy instead of at least hundreds needed to account for inhomogeneous broadening. The present review provides a detailed graphical analysis of the key quantities of this model: the average charge density of the solvent (<?B>) and the corresponding Frozen-Density Embedding Theory derived embedding potential for coumarin 153.

Downloads

Published

2014-09-24

How to Cite