New trends in the state-to-state photodissociation dynamics of H2O()

Article abstract of DOI:10.1063/1.468268

The water molecule, rotationally state selected in the third and fourth OH stretching overtone (<*>04>^-, <*>05>^-) and stretch-bend combination (<*>04^-2>) levels, has been photodissociated via the <*> state at λ<*>282 nm.The photofragment rotational state distributions, determined by OH(A-X) laser induced fluorescence (LIF), differ from those reported previously by Andersen and co-workers, in which water was initially prepared in the <*>01>^- level and photodissociated at 193 nm, and from those by Crim and co-workers, in which H2O was photodissociated via the <*>04>^- level at wavelengths shorter than 282 nm.These differences become more pronounced with increasing angular momentum in the parent water molecule and with an increasing number of quanta in the intermediate OH stretching overtone state.The Franck-Condon theory of Balint-Kurti, previously employed successfully to account for the product state distributions arising from the 193 nm photodissociation of H2O<*>01>^-, qualitatively reproduces the trends observed in the present study if it is assumed that dissociation occurs preferentially from extended R_H-OH configurations of the <*>04>^- and <*>05>^- overtones.The product OH state distributions are thus shown to be sensitive indicators of the bending and rotational motions of H2O(<*>) in the wide amplitude stretching region of the ground state surface.

Full text of DOI:10.1063/1.468268

New trends in the statetostate photodissociation dynamics of H2O(Ã)
M. Brouard, S. R. Langford, and D. E. Manolopoulos
Citation: The Journal of Chemical Physics 101, 7458 (1994); doi: 10.1063/1.468268
View online: http://dx.doi.org/10.1063/1.468268
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/101/9?ver=pdfcov
Published by the AIP Publishing
Articles you may be interested in
State-to-state photodissociation dynamics of triatomic molecules: H2O in the B band
J. Chem. Phys. 136, 034302 (2012); 10.1063/1.3676725
Communication: State-to-state differential cross sections for H2O( B ̃ ) photodissociation
J. Chem. Phys. 134, 231103 (2011); 10.1063/1.3604567
State-to-state ArHBr photodissociation quantum dynamics
J. Chem. Phys. 117, 8676 (2002); 10.1063/1.1514213
Statetostate dynamics of the H+pH2→o,pH2+H reaction: Feshbach resonances and vibrational
spectroscopy of the transition state
J. Chem. Phys. 92, 1083 (1990); 10.1063/1.458170
Statetostate dynamics of IR multiphoton absorption in the Ã1 A 2 state of thiophosgene: Absorption cross
sections
J. Chem. Phys. 76, 197 (1982); 10.1063/1.442758
This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
152.7.27.132 On: Tue, 02 Dec 2014 16:52:35