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Photodissociation of partially solvated molecules in beams by the picosecond-jet technique: Hydrogen bond breakage

Felker, Peter M. and Zewail, Ahmed H. (1983) Photodissociation of partially solvated molecules in beams by the picosecond-jet technique: Hydrogen bond breakage. Journal of Chemical Physics, 78 (8). pp. 5266-5268. ISSN 0021-9606. doi:10.1063/1.445350.

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In this communication we wish to report the measurement of photodissociation rates of jet-cooled solute-solvent complexes in various stages of solvation. The observation of fluorescence decays as a function of excess vibrational energy for isoquinoline (IQ), IQ-(methanol)n, and IQ-(water)n complexes reveals threshold behavior for the decays rates of 1:1 solute-solvent complexes. The thresholds at ~3 kcal/mol provide new information on the breakage of excited state hydrogen bonds.

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Additional Information:© 1983 American Institute of Physics. Received 22 December 1982; accepted 15 February 1983. This work was supported by the National Science Foundation. We thank Professor R. Marcus for enlightening discussions on some of the theoretical aspects. [A.H.Z. was a] Camille and Henry Dreyfus Foundation Teacher-Scholar. Arthur Amos Noyes Laboratory of Chemical Physics, Contribution No, 6768.
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Camille and Henry Dreyfus FoundationUNSPECIFIED
Subject Keywords:hydrogen bonds, fluorescence, jets, ps range, photodissociation, complexes, solvation, aqueous solutions, quinolines
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Arthur Amos Noyes Laboratory of Chemical Physics6768
Issue or Number:8
Record Number:CaltechAUTHORS:FELjcp83
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11728
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Deposited On:22 Sep 2008 03:46
Last Modified:08 Nov 2021 22:02

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