Ultrafast photodissociation of I3- in solution : direct observation of coherent product vibrations

We report the observation of terahertz oscillations in transient transmission measurements following femtosecond UV photolysis of I−3 in ethanol solutions. Transmission signals at 620 nm and at 880 nm, which are above and below the λmax of the known absorption of I−2 oscillate at precisely opposite...

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Bibliographic Details
Published in:The Journal of chemical physics 1992-02, Vol.96 (3), p.2416-2419
Main Authors: BANIN, U, WALDMAN, A, RUHMAN, S
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Exact sciences and technology
Molecular properties and interactions with photons
Physics
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Summary:We report the observation of terahertz oscillations in transient transmission measurements following femtosecond UV photolysis of I−3 in ethanol solutions. Transmission signals at 620 nm and at 880 nm, which are above and below the λmax of the known absorption of I−2 oscillate at precisely opposite phase. This and other results presented indicate that though the oscillations we are observing coherent vibration of the I−2 photofragment.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.462041