Time-resolved dynamics of thermal isomerization in cesium-halide cluster anions

We have performed time-resolved studies of the dynamics of thermal isomerization occurring in certain cesium-halide cluster anions. Using a pump-probe technique, we have observed the repopulation of a photodepleted isomer within an ensemble as a function of time by monitoring the photoelectron spect...

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Bibliographic Details
Published in:Physical review letters 2003-02, Vol.90 (6), p.063401-063401, Article 063401
Main Authors: Dally, A J, Bloomfield, L A
Format: Article
Language:English
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Summary:We have performed time-resolved studies of the dynamics of thermal isomerization occurring in certain cesium-halide cluster anions. Using a pump-probe technique, we have observed the repopulation of a photodepleted isomer within an ensemble as a function of time by monitoring the photoelectron spectrum. The rates of isomerization increase and the isomer lifetimes decrease as functions of temperature. The clusters undergo a gradual phase transition from solid-like to liquid-like states with liquid-like behavior obtained at approximately 500 K, much lower than the bulk melting temperatures of approximately 900 K.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.90.063401