Laser spectroscopy of proton dynamics in hydrogen bonds

Robin M. Hochstrasser; A. Oppenlaender; M. Pierre; C. Rambaud; R. Silbey; J. L. Skinner; H. P. Trommsdorff; Jean-Claude Vial

doi:10.1117/12.57328

1 May 1991 Laser spectroscopy of proton dynamics in hydrogen bonds

Robin M. Hochstrasser, A. Oppenlaender, M. Pierre, C. Rambaud, R. Silbey, J. L. Skinner, H. P. Trommsdorff, Jean-Claude Vial

Author Affiliations +

Proceedings Volume 1403, Laser Applications in Life Sciences; (1991) https://doi.org/10.1117/12.57328
Event: Laser Applications in Life Sciences, 1990, Moscow, Russian Federation

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.

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Robin M. Hochstrasser, A. Oppenlaender, M. Pierre, C. Rambaud, R. Silbey, J. L. Skinner, H. P. Trommsdorff, and Jean-Claude Vial "Laser spectroscopy of proton dynamics in hydrogen bonds", Proc. SPIE 1403, Laser Applications in Life Sciences, (1 May 1991); https://doi.org/10.1117/12.57328

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