Femtosecond studies of acid-base reactions

B. Cohen*, D. Huppert

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We have measured the direct proton transfer rate between a photo-acid, 8-hydroxypyrene 1,3,6 - trisulfonate (HPTS) and a base, acetate anion in water using a pump probe technique with ∼ 150 fs time. Our data analysis of aqueous solutions of 0.5M-4M sodium-acetate shows a good agreement with the diffusive model. The intrinsic rate constant at contact of the reactive species was found to be 1.6 · 1011 M-1s-1.

Original languageEnglish
Pages (from-to)191-198
Number of pages8
JournalMolecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics
Issue number3
StatePublished - 2000
EventFirst Bi-National German-Israeli Workshop on Ultrafast Optical Technologies - Tel Aviv, Israel
Duration: 12 Oct 199913 Oct 1999


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