Mechanism and Dynamics of Azobenzene Photoisomerization
- 11 June 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 125 (27) , 8098-8099
- https://doi.org/10.1021/ja021363x
Abstract
The excited-state dynamics of trans-azobenzene were investigated by femtosecond time-resolved photoelectron spectroscopy and ab initio molecular dynamics. Two near-degenerate ππ* excited states, S2 and S3,4, were identified in a region hitherto associated with only one excited state. These results help to explain contradictory reports about the photoisomerization mechanism and the wavelength dependence of the quantum yield. A new model for the isomerization mechanism is proposed.Keywords
This publication has 24 references indexed in Scilit:
- Femtosecond Time-Resolved Photoelectron Spectroscopy of Polyatomic MoleculesAnnual Review of Physical Chemistry, 2003
- Ultrafast spectroscopy reveals subnanosecond peptide conformational dynamics and validates molecular dynamics simulationProceedings of the National Academy of Sciences, 2002
- A photorefractive organically modified silica glass with high optical gainNature, 2000
- Ab Initio Multiple Spawning: Photochemistry from First Principles Quantum Molecular DynamicsThe Journal of Physical Chemistry A, 2000
- Photoprobe Study of Siloxane Polymers. 3. Local Free Volume of Polymethylsilsesquioxane Probed by Photoisomerization of AzobenzeneMacromolecules, 2000
- Ab Initio Calculation of the Electronic Spectrum of Azobenzene Dyes and Its Impact on the Design of Optical Data Storage MaterialsJournal of the American Chemical Society, 2000
- Ultrafast Dynamics of Photochromic SystemsChemical Reviews, 2000
- Discerning vibronic molecular dynamics using time-resolved photoelectron spectroscopyNature, 1999
- Ab initio molecular dynamics around a conical intersection: Li(2p) + H2Chemical Physics Letters, 1997
- Photochemical switching of polarization in ferroelectric liquid-crystal filmsNature, 1993