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Title: Femtosecond time-resolved electronic relaxation dynamics in tetrathiafulvalene

Abstract

In the present paper, the ultrafast electronic relaxation of tetrathiafulvalene (TTF) initiated around 4 eV is studied by femtosecond time-resolved velocity-map imaging. The goal is to investigate the broad double structure observed in the absorption spectrum at this energy. By monitoring the transients of the parent cation and its fragments and by varying the pump and the probe wavelengths, two internal conversions and intramolecular vibrational relaxation are detected both on the order of a few hundred of femtoseconds. Photoelectron images permit the assignment of a dark electronic state involved in the relaxation. In addition, the formation of the dimer of TTF has been observed.

Authors:
;  [1];  [1];  [2];  [3];  [4];  [1];  [5]
  1. Laboratoire de Collisions, Agrégats et Réactivité, IRSAMC, Université de Toulouse-CNRS, 31062 Toulouse (France)
  2. (Canada)
  3. Centre des Laser Intenses et Applications, Université de Bordeaux-CNRS, 33405 Talence (France)
  4. Chemistry Department, University of Ottawa, Ottawa, Ontario K1N 6N5 (Canada)
  5. (France)
Publication Date:
OSTI Identifier:
22415800
Resource Type:
Journal Article
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 142; Journal Issue: 19; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9606
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTRA; CATIONS; DIMERS; EV RANGE; IMAGES; INTERNAL CONVERSION; PROBES; RELAXATION; TETRATHIAFULVALENE; TIME RESOLUTION; TRANSIENTS; VELOCITY

Citation Formats

Staedter, D., Polizzi, L., Thiré, N., INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Blvd., Varennes, Quebec J3X1S2, Mairesse, Y., Mayer, P., Blanchet, V., E-mail: blanchet@celia.u-bordeaux1.fr, and Centre des Laser Intenses et Applications, Université de Bordeaux-CNRS, 33405 Talence. Femtosecond time-resolved electronic relaxation dynamics in tetrathiafulvalene. United States: N. p., 2015. Web. doi:10.1063/1.4921319.
Staedter, D., Polizzi, L., Thiré, N., INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Blvd., Varennes, Quebec J3X1S2, Mairesse, Y., Mayer, P., Blanchet, V., E-mail: blanchet@celia.u-bordeaux1.fr, & Centre des Laser Intenses et Applications, Université de Bordeaux-CNRS, 33405 Talence. Femtosecond time-resolved electronic relaxation dynamics in tetrathiafulvalene. United States. doi:10.1063/1.4921319.
Staedter, D., Polizzi, L., Thiré, N., INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Blvd., Varennes, Quebec J3X1S2, Mairesse, Y., Mayer, P., Blanchet, V., E-mail: blanchet@celia.u-bordeaux1.fr, and Centre des Laser Intenses et Applications, Université de Bordeaux-CNRS, 33405 Talence. Thu . "Femtosecond time-resolved electronic relaxation dynamics in tetrathiafulvalene". United States. doi:10.1063/1.4921319.
@article{osti_22415800,
title = {Femtosecond time-resolved electronic relaxation dynamics in tetrathiafulvalene},
author = {Staedter, D. and Polizzi, L. and Thiré, N. and INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Blvd., Varennes, Quebec J3X1S2 and Mairesse, Y. and Mayer, P. and Blanchet, V., E-mail: blanchet@celia.u-bordeaux1.fr and Centre des Laser Intenses et Applications, Université de Bordeaux-CNRS, 33405 Talence},
abstractNote = {In the present paper, the ultrafast electronic relaxation of tetrathiafulvalene (TTF) initiated around 4 eV is studied by femtosecond time-resolved velocity-map imaging. The goal is to investigate the broad double structure observed in the absorption spectrum at this energy. By monitoring the transients of the parent cation and its fragments and by varying the pump and the probe wavelengths, two internal conversions and intramolecular vibrational relaxation are detected both on the order of a few hundred of femtoseconds. Photoelectron images permit the assignment of a dark electronic state involved in the relaxation. In addition, the formation of the dimer of TTF has been observed.},
doi = {10.1063/1.4921319},
journal = {Journal of Chemical Physics},
issn = {0021-9606},
number = 19,
volume = 142,
place = {United States},
year = {2015},
month = {5}
}