Electronic absorption spectra of jet-cooled molecules. The S2 state of styrene

R. J. Hemley, D. G. Leopold, V. Vaida, J. L. Roebber

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19 Scopus citations


The 220-260-nm adsorption system of styrene cooled in a pulsed supersonic expansion exhibits vibrational structure involving 240- and 1600-cm-1 progressions. A distorted excited state is evidenced by an extended progression in the 240-cm-1 mode. Several possible assignments for the two modes are discussed, including ethylene double bond torsion for the low-frequency mode. Implications for styrene cis-trans photoisomerization and the importance of the newly developed supersonic jet direct absorption technique are mentioned.

Original languageEnglish (US)
Pages (from-to)134-135
Number of pages2
JournalJournal of physical chemistry
Issue number2
StatePublished - Jan 1 1981


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