Raman study of a photochromic diarylethene molecule: a combined theoretical and experimental study
Article first published online: 14 NOV 2013
Copyright © 2013 John Wiley & Sons, Ltd.
Journal of Raman Spectroscopy
Volume 44, Issue 12, pages 1777–1785, December 2013
How to Cite
Boubekri, R., Yasukuni, R., Lau Truong, S., Grand, J., Perrier, A., Aubard, J. and Maurel, F. (2013), Raman study of a photochromic diarylethene molecule: a combined theoretical and experimental study. J. Raman Spectrosc., 44: 1777–1785. doi: 10.1002/jrs.4406
- Issue published online: 13 DEC 2013
- Article first published online: 14 NOV 2013
- Manuscript Accepted: 9 OCT 2013
- Manuscript Revised: 8 OCT 2013
- Manuscript Received: 10 JUN 2013
- Sciences and Engineering for Advanced Materials and Devices – SEAMs. Grant Number: ANR-10-LABX-96
- ANR (Agence Nationale de la Recherche). Grant Number: ANR-07-NANO-0025
- DFT calculations;
In this paper, the photochromic reaction of the 1,2-bis(5′-ethoxy-2′-(2″-pyridyl) thiazolyl) compound (named DE) was studied by ultraviolet–visible absorption and various Raman spectroscopies associated with density functional theory calculations. To explain the growth of the visible absorption spectrum when the compound is irradiated with ultraviolet light, we suggest the existence of several conformations of the colored form. We also studied the vibrational spectroscopic properties of DE in different conditions such as powder, thin solid film, or in gold nanorods colloidal solutions. This compound is found photochromic in all these conditions. The theoretical Raman spectra of the open and closed forms reproduce fairly well the experimental data and help the complete assignment of the observed bands. Copyright © 2013 John Wiley & Sons, Ltd.