Ultraviolet photodissociation dynamics of H2S and D2S

Article abstract of DOI:10.1063/1.456082

Nascent SH(X ²Π_i, v''= 0,1) and SD(X ²Π_i, v''= 0,1) rotational state population distributions, spin-orbit state population ratios, and Λ-doublet state population ratios have been measured following the UV excimer laser photodissociation of H2S (λ = 193, 222, and 248 nm) and D2S (λ = 193 and 222 nm), respectively.Nascent SH(X ²Π_i, v'' = 0) rotational state distributions following 193 nm photodissociation of cold H2S in a free jet expansion vs 300 K H2S in a flowing gas cell were essentially the same, indicating that photofragment angular momentum must be originating predominantly in the dissociation event, and not from rotational energy contained in the parent triatom.Laser excitation spectra of SH(X ²Π_i, v''= 1) and SD(X ²Π_i, v''= 1) have been recorded for the first time.Rotational state distributions for SH(X ²Π_i, v'') and SD(X ²Π_i,v'') are independent of v''. Λ-doublet population ratios of the nascent photofragments are essentially unity for all the cases measured.The nascent rotational state distributions are consistent with an impact parameter model for the dissociating triatomic molecule.

Full text of DOI:10.1063/1.456082

Ultraviolet photodissociation dynamics of H2S and D2S
Brad R. Weiner, Harold B. Levene, James J. Valentini, and A. P. Baronavski
Citation: The Journal of Chemical Physics 90, 1403 (1989); doi: 10.1063/1.456082
View online: http://dx.doi.org/10.1063/1.456082
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/90/3?ver=pdfcov
Published by the AIP Publishing
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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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33

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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33

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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33

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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33

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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33

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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33

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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33

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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33

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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33

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:
128.138.73.68 On: Sun, 21 Dec 2014 04:28:33