A fully quantum mechanical dynamical calculation on the photodissociation of molecular chlorine is presented. The magnitudes and phases of all the relevant photofragment T-matrices have been calculated, making this study the computational equivalent of a “complete experiment,” where all the possible parameters defining an experiment have been determined. The results are used to simulate cross-sections and angular momentum polarization information which may be compared with experimental data. The calculations rigorously confirm the currently accepted mechanism for the UV photodissociation of Cl2, in which the majority of the products exit on the C 1Π1u state, with non-adiabatic couplings to the A 3Π1u and several other Ω = 1 states, and a small contribution from the B
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28 April 2012
Research Article|
April 27 2012
A complete quantum mechanical study of chlorine photodissociation
A. J. Johnsen;
A. J. Johnsen
1The Department of Chemistry,
University of Oxford
, The Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, United Kingdom
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A. B. Alekseyev;
A. B. Alekseyev
2Fachbereich C-Mathematik und Naturwissenschaften,
Bergische Universität
, Gaussstr. 20, D-42119 Wuppertal, Germany
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G. G. Balint-Kurti;
G. G. Balint-Kurti
3Centre for Computational Chemistry, School of Chemistry,
University of Bristol
, Bristol BS8 1TS, United Kingdom
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M. Brouard;
M. Brouard
a)
1The Department of Chemistry,
University of Oxford
, The Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, United Kingdom
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Alex Brown;
Alex Brown
4Department of Chemistry,
University of Alberta
, Edmonton, Alberta T6G 2G2, Canada
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R. J. Buenker;
R. J. Buenker
2Fachbereich C-Mathematik und Naturwissenschaften,
Bergische Universität
, Gaussstr. 20, D-42119 Wuppertal, Germany
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E. K. Campbell;
E. K. Campbell
1The Department of Chemistry,
University of Oxford
, The Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, United Kingdom
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D. B. Kokh
D. B. Kokh
2Fachbereich C-Mathematik und Naturwissenschaften,
Bergische Universität
, Gaussstr. 20, D-42119 Wuppertal, Germany
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a)
Electronic mail: mark.brouard@chem.ox.ac.uk.
J. Chem. Phys. 136, 164310 (2012)
Article history
Received:
January 26 2012
Accepted:
March 30 2012
Connected Content
A companion article has been published:
Electronic polarization effects in the photodissociation of Cl2
Citation
A. J. Johnsen, A. B. Alekseyev, G. G. Balint-Kurti, M. Brouard, Alex Brown, R. J. Buenker, E. K. Campbell, D. B. Kokh; A complete quantum mechanical study of chlorine photodissociation. J. Chem. Phys. 28 April 2012; 136 (16): 164310. https://doi.org/10.1063/1.4704829
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