Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 6, Issue 3, Pages 343-346Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jz502487r
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Funding
- Research Foundation for Opto-Science and Technology
- Amada Foundation
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Ultrafast photoelectron imaging using a 90 nm vacuum-UV probe pulse is applied to the ring-opening reaction of 1,3-cyclohexadiene (CHD) in the gas phase, and formation of 1,3,5-hexatriene (HT) and CHD in their electronic ground states is observed in real time. The analysis of the transient photoelectron kinetic energy spectra reveals the branching ratio into HT and CHD as 3:7 upon 270 nm photoexcitation. The ratio is in reasonable agreement with the experimental values reported for the liquid phase and theoretical values for the gas phase, resolving the discrepancy.
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