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Proceedings Paper

Laser spectroscopy of proton dynamics in hydrogen bonds
Author(s): Robin M. Hochstrasser; A. Oppenlaender; M. Pierre; C. Rambaud; R. Silbey; J. L. Skinner; H. P. Trommsdorff; Jean-Claude Vial
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Paper Abstract

In this paper a summary of recent work on proton tunneling in intermolecular hydrogen bonds in the condensed phase is presented and its relevance to biological systems is discussed. Dye molecules are used to influence the proton structure in neighboring hydrogen bonds. The optical transitions of the dye serve as a probe of this structure and the dynamics. A variety of optical spectroscopic measurements at low temperatures leads to a determination of the tunneling splitting and the rate of proton transfer in benzoic acid dimers. A theoretical analysis of these data within a simplified model suggests that fluctuadons of the energy difference of the tautomers determine the relaxation behavior and that multiphonon processes dominate the relaxation of delocalized protons. 1.

Paper Details

Date Published: 1 May 1991
PDF: 9 pages
Proc. SPIE 1403, Laser Applications in Life Sciences, (1 May 1991); doi: 10.1117/12.57328
Show Author Affiliations
Robin M. Hochstrasser, Univ. of Pennsylvania (United States)
A. Oppenlaender, Univ. Joseph-Fourier Grenoble I (France)
M. Pierre, Univ. Joseph-Fourier Grenoble I (France)
C. Rambaud, Univ. Joseph-Fourier Grenoble I (France)
R. Silbey, Massachusetts Institute of Technology (United States)
J. L. Skinner, Univ. of Wisconsin (United States)
H. P. Trommsdorff, Univ. Joseph-Fourier Grenoble I (France)
Jean-Claude Vial, Univ. Joseph-Fourier Grenoble I (France)

Published in SPIE Proceedings Vol. 1403:
Laser Applications in Life Sciences
Sergei A. Akhmanov; Marina Yu. Poroshina, Editor(s)

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