Infrared multiphoton induced isomerization of cis-3,4-dichlorocyclobutene. I. Experimental results

Article abstract of DOI:10.1063/1.444618

The yield and product distribution in the laser-induced isomerization of cis-3,4-dichlorocyclobutene (DCCB) have been measured as functions of laser fluence, DCCB pressure, and buffer gas pressure.Both Woodward-Hoffman allowed and "forbidden" isomers were observed.The fraction of "forbidden" products was found to increase linearly with fluence above a threshold of 3.5 J/cm².At high fluence the yield increased quadratically with neat DCCB pressure.Both the yield and fraction of "forbidden" products declined monotonically with buffer gas pressure.These observations are explained in terms of a two-channel mechanism, in which the allowed isomer is formed in a concerted path and the forbidden isomers are produced from a diradical intermediate in a nonconcerted reaction.

Full text of DOI:10.1063/1.444618

Infrared multiphoton induced isomerization of cis3,4 dichlorocyclobutene. I.
Experimental results
Nathan Presser, ChungRei Mao, Robert M. Moriarty, and Robert J. Gordon
Citation: The Journal of Chemical Physics 78, 6021 (1983); doi: 10.1063/1.444618
View online: http://dx.doi.org/10.1063/1.444618
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/78/10?ver=pdfcov
Published by the AIP Publishing
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130.113.111.210 On: Fri, 19 Dec 2014 17:12:35

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:
130.113.111.210 On: Fri, 19 Dec 2014 17:12:35

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:
130.113.111.210 On: Fri, 19 Dec 2014 17:12:35

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:
130.113.111.210 On: Fri, 19 Dec 2014 17:12:35

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:
130.113.111.210 On: Fri, 19 Dec 2014 17:12:35

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:
130.113.111.210 On: Fri, 19 Dec 2014 17:12:35

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:
130.113.111.210 On: Fri, 19 Dec 2014 17:12:35

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:
130.113.111.210 On: Fri, 19 Dec 2014 17:12:35