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Schultz, Thomas
CRASY(Correlated Rotational Alignment Spectroscopy)
Research Interests
  • Correlated spectroscopy

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Mechanism and dynamics of azobenzene photoisomerization

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Title
Mechanism and dynamics of azobenzene photoisomerization
Author
Schultz, ThomasQuenneville, JLevine, BToniolo, AMartinez, TJLochbrunner, SSchmitt, MShaffer, JPZgierski, MZStolow, A
Keywords
RESOLVED PHOTOELECTRON-SPECTROSCOPY; MOLECULAR-DYNAMICS; AB-INITIO; ABSORPTION-SPECTROSCOPY; IONIZATION CORRELATIONS; ELECTRONIC CONTINUA; TRANS-AZOBENZENE; PHOTOCHEMISTRY
Issue Date
200307
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.125, no.27, pp.8098 - 8099
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.
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DOI
http://dx.doi.org/10.1021/ja021363x
ISSN
0002-7863
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