Chachisvilis, M. and Fiebig, T. and Douhal, A. and Zewail, A. H. (1998) Femtosecond Dynamics of a Hydrogen-Bonded Model Base Pair in the Condensed Phase: Double Proton Transfer in 7-Azaindole. Journal of Physical Chemistry A, 102 (4). pp. 669-673. ISSN 1089-5639. doi:10.1021/jp980337b. https://resolver.caltech.edu/CaltechAUTHORS:20160824-074502982
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Abstract
Femtosecond, real-time dynamics of a hydrogen-bonded model base pair (7-azaindole dimer) in the condensed phase is presented and compared with gas-phase, molecular beam studies. Following the preparation of a wave packet (nonequilibrium state), we resolved the initial decay of the reactive pair and the rise of the tautomer in two solvents. Studies of the isotope effect, solvent viscosity, energy dependence, and polarization anisotropy are consistent with direct and indirect reaction pathways for the double proton transfer on a global potential energy surface.
| Item Type: | Article | ||||||||||
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| Additional Information: | © 1998 American Chemical Society. Received: November 25, 1997; In Final Form: December 10, 1997. Publication Date (Web): January 6, 1998. This work was supported by the National Science Foundation (Laboratory for Molecular Science). M.C. thanks the Swedish Foundation for International Cooperation in Research and Higher Education (STINT) for its generous fellowship. T.F. is grateful for financial support from the Deutsche Forschungsgemeinschaft. A.D. thanks the University of Castilla-La Mancha (Spain) for partial support of his stay at Caltech. We thank Dr. W. Kühnle for his help with HPLC. We also thank the referee for thorough reading of the manuscript and helpful comments. | ||||||||||
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| Issue or Number: | 4 | ||||||||||
| DOI: | 10.1021/jp980337b | ||||||||||
| Record Number: | CaltechAUTHORS:20160824-074502982 | ||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20160824-074502982 | ||||||||||
| Official Citation: | Femtosecond Dynamics of a Hydrogen-Bonded Model Base Pair in the Condensed Phase: Double Proton Transfer in 7-Azaindole M. Chachisvilis, T. Fiebig, A. Douhal, and A. H. Zewail The Journal of Physical Chemistry A 1998 102 (4), 669-673 DOI: 10.1021/jp980337b | ||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||
| ID Code: | 69873 | ||||||||||
| Collection: | CaltechAUTHORS | ||||||||||
| Deposited By: | Ruth Sustaita | ||||||||||
| Deposited On: | 26 Aug 2016 18:00 | ||||||||||
| Last Modified: | 11 Nov 2021 04:21 |
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