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Published July 25, 1986 | public
Journal Article

Intramolecular dephasing in pyrazine: deuterium isotope effect and further tests of theory

Abstract

We present picosecond time-resolved results on the fluorescence decay of jet-cooled pyrazine-d_4. The decay is pseudo-double exponential and quantum-beat-modulated. The data for pyrazine-d_4, as well as for pyrazine-h_4, are rationalized using radia tionless transition theory. Finally, the connection of the picosecond dynamics to the frequency domain spectrum of pyrazine eigenstates is made.

Additional Information

© 1986 Elsevier Science Publishers B.V. Received 23 May 1986. This work was supported by a grant from the National Science Foundation (DMR-8521191). One of us (AHZ) would like to acknowledge discussions with Professors J. Jortner and J. Kommandeur, pointing to the need for further picosecond experiments on pyrazine-d_4. We also thank Professor S.A. Rice for discussions concerning the results in ref. [13].

Additional details

Created:
August 19, 2023
Modified:
October 20, 2023