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Dynamics of intramolecular vibrational-energy redistribution (IVR). I. Coherence effects

Felker, Peter M. and Zewail, Ahmed H. (1985) Dynamics of intramolecular vibrational-energy redistribution (IVR). I. Coherence effects. Journal of Chemical Physics, 82 (7). pp. 2961-2974. ISSN 0021-9606.

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In this series of papers, theoretical and experimental results concerning the dynamical manifestations of intramolecular vibrational-energy redistribution (IVR) in temporally resolved fluorescence are presented. In this paper (I) we present a general treatment of IVR and coherence effects in multilevel vibrational systems. Specifically, the concern is with the derivation of the characteristics of the beat-modulated fluorescence decays which arise from vibrational coupling among N levels within a molecule. Relations connecting quantum beat frequencies, phases, and modulation depths to coupling parameters are presented. Likely sources of deviation of experimental results from theoretical predictions are considered. And, finally, the direct link between IVR and time-resolved fluorescence experiments is discussed with emphasis placed on the physical interpretation of vibrational quantum beats and the nature of IVR as a function of vibrational energy in a molecule.

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Additional Information:© 1985 American Institute of Physics. Received 9 November 1984; accepted 17 December 1984. This work was supported by the National Science Foundation through Grant No. DMR-8105034. [P.M.F. was an] IBM Graduate Fellow. [A.H.Z. was a] Camille and Henry Dreyfus Foundation Teacher-Scholar. Arthur Amos Noyes Laboratory of Chemical Physics, Contribution No. 7116.
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Camille and Henry Dreyfus FoundationUNSPECIFIED
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Arthur Amos Noyes Laboratory of Chemical Physics7116
Issue or Number:7
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Deposited On:22 Sep 2008 04:29
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