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Smith BH, Compton RN. Laser Multiphoton Ionization of Tetrakis(dimethylamino)ethylene. J Phys Chem A 2014; 118:7288-96. [DOI: 10.1021/jp411294j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Byron H. Smith
- Department
of Physics, University of Tennessee, 401 Nielsen Physics Building 1408
Circle Drive, Knoxville, Tennessee 37916, United States
| | - Robert N. Compton
- Department
of Physics, University of Tennessee, 401 Nielsen Physics Building 1408
Circle Drive, Knoxville, Tennessee 37916, United States
- Department
of Chemistry, University of Tennessee, 552 Buehler Hall, 1420 Circle Drive, Knoxville, Tennessee 37916, United States
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Poisson L, Gloaguen E, Mestdagh JM, Soep B, Gonzalez A, Chergui M. Direct Observation of Microscopic Solvation at the Surface of Clusters by Ultrafast Photoelectron Imaging. J Phys Chem A 2008; 112:9200-10. [DOI: 10.1021/jp711259m] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lionel Poisson
- Laboratoire Francis Perrin (CNRS-URA-2453), DSM/IRAMIS/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France, and Ecole Polytechnique Fédérale de Lausanne, Laboratoire de Spectroscopie Ultrarapide, ISIC, Faculté des Sciences de Base, BSP CH-1015 Lausanne-Dorigny, Switzerland
| | - Eric Gloaguen
- Laboratoire Francis Perrin (CNRS-URA-2453), DSM/IRAMIS/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France, and Ecole Polytechnique Fédérale de Lausanne, Laboratoire de Spectroscopie Ultrarapide, ISIC, Faculté des Sciences de Base, BSP CH-1015 Lausanne-Dorigny, Switzerland
| | - Jean-Michel Mestdagh
- Laboratoire Francis Perrin (CNRS-URA-2453), DSM/IRAMIS/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France, and Ecole Polytechnique Fédérale de Lausanne, Laboratoire de Spectroscopie Ultrarapide, ISIC, Faculté des Sciences de Base, BSP CH-1015 Lausanne-Dorigny, Switzerland
| | - Benoît Soep
- Laboratoire Francis Perrin (CNRS-URA-2453), DSM/IRAMIS/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France, and Ecole Polytechnique Fédérale de Lausanne, Laboratoire de Spectroscopie Ultrarapide, ISIC, Faculté des Sciences de Base, BSP CH-1015 Lausanne-Dorigny, Switzerland
| | - Alejandro Gonzalez
- Laboratoire Francis Perrin (CNRS-URA-2453), DSM/IRAMIS/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France, and Ecole Polytechnique Fédérale de Lausanne, Laboratoire de Spectroscopie Ultrarapide, ISIC, Faculté des Sciences de Base, BSP CH-1015 Lausanne-Dorigny, Switzerland
| | - Majed Chergui
- Laboratoire Francis Perrin (CNRS-URA-2453), DSM/IRAMIS/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France, and Ecole Polytechnique Fédérale de Lausanne, Laboratoire de Spectroscopie Ultrarapide, ISIC, Faculté des Sciences de Base, BSP CH-1015 Lausanne-Dorigny, Switzerland
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Yatsuhashi T, Obayashi T, Tanaka M, Murakami M, Nakashima N. Femtosecond Laser Ionization of Organic Amines with Very Low Ionization Potentials: Relatively Small Suppressed Ionization Features. J Phys Chem A 2006; 110:7763-71. [PMID: 16789760 DOI: 10.1021/jp0619989] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We examined the femtosecond nonresonant ionization of organic amines with vertical ionization potentials as low as 5.95 eV. The quantitative evaluation of suppressed ionization relative to the single active electron approximation model was done by comparing the saturation intensity, I(sat), in experiments and theory. ADK theory was found to be useful in predicting the ionization yield in the I(sat) scale within a factor of 2, even for molecules with very low ionization potentials. The degree of suppression was, however, smaller than that of benzene. The localization of electrons on the nitrogen atom was found to affect the ionization behavior under the strong laser field. The delocalized pi electrons in benzene could not follow the laser field adiabatically, while those in localized molecular orbitals could. In addition, the growth of a tunneling barrier due to the screening effect in amines may be relatively smaller than that in benzene.
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Affiliation(s)
- Tomoyuki Yatsuhashi
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi, Japan.
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Gloaguen E, Mestdagh JM, Poisson L, Lepetit F, Visticot JP, Soep B, Coroiu M, Eppink ATJB, Parker DH. Experimental Evidence for Ultrafast Electronic Relaxation in Molecules, Mediated by Diffuse States. J Am Chem Soc 2005; 127:16529-34. [PMID: 16305241 DOI: 10.1021/ja052269u] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The existence of a mediating state for the ultrafast electronic relaxation in ethylenic-like molecules has been shown by femtosecond electron imaging techniques. This state is of Rydberg character, and its high efficiency is due to its ability to link the electron distributions of the initial and final electronic states.
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Affiliation(s)
- Eric Gloaguen
- Laboratoire Francis Perrin, CNRS-URA-2453, DSM/DRECAM/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France
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Sorgues S, Mestdagh JM, Soep B. Solvation shift of a conical intersection in clusters of excited tetrakis(dimethyl amino)ethylene with ammonia and acetonitrile molecules. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2004.09.151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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