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Journal of Chemistry
Volume 2013 (2013), Article ID 153126, 4 pages
Research Article

The Indigo Molecule Revisited Again: Assessment of the Minnesota Family of Density Functionals for the Prediction of Its Maximum Absorption Wavelengths in Various Solvents

NANOCOSMOS Virtual Lab, Centro de Investigación en Materiales Avanzados, Miguel de Cervantes 120, Complejo Industrial Chihuahua, 31109 Chihuahua, CHIH, Mexico

Received 28 April 2012; Accepted 18 May 2012

Academic Editor: Cherumuttathu H. Suresh

Copyright © 2013 Francisco Cervantes-Navarro and Daniel Glossman-Mitnik. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The Minnesota family of density functionals (M05, M05-2X, M06, M06L, M06-2X, and M06-HF) were evaluated for the calculation of the UV-Vis spectra of the indigo molecule in solvents of different polarities using time-dependent density functional theory (TD-DFT) and the polarized continuum model (PCM). The maximum absorption wavelengths predicted for each functional were compared with the known experimental results.