Table of Contents
Laser Chemistry
Volume 7, Issue 1, Pages 41-55

Investigation of Solvent Dependence of Intermolecular Proton Transfer by Picosecond Absorption Spectroscopy

Friedrich-Schiller-University Jena, Department of Physics, Jena DDR 6900, Germany

Copyright © 1987 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A picosecond absorption study on the intermolecular proton transfer of photoexcited 8-hydroxy-1,3,6-pyrene trisulfonate (HPTS) is presented. The time of formation of deprotonated excited HPTS was measured for various solvents. The dependence of this time of formation on the methanol fraction in watermethanol mixtures is discussed in terms of a simple cluster model. Proton transfer rates were determined in different micellar systems yielding information on the character of the micellar surrounding of the proton donator.