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Ultrafast aqueous bimolecular acid-base proton transfer: From direct exchange to sequential hopping
Conference proceeding

Ultrafast aqueous bimolecular acid-base proton transfer: From direct exchange to sequential hopping

Omar F. Mohammed, Dina Pines, Jens Dreyer, Ehud Pines and Erik T. J. Nibbering
ULTRAFAST PHENOMENA XV, Vol.88, pp.412-414
Springer Series in Chemical Physics
01/01/2007
DOI: https://doi.org/10.1007/978-3-540-68781-8_133

Abstract

Chemistry Chemistry, Physical Optics Physical Sciences Physics Physics, Applied Science & Technology Spectroscopy Technology
We explore the aqueous bimolecular neutralization reaction between a photoacid ROH and carboxylate bases -OOCR ' and show that proton transfer in loose complexes (ROH center dot center dot H2O center dot center dot-OOCR ') occurs through intermediate water molecules in a sequential von Grotthuss type fashion, with the second step having similar reaction rates as those of the encounter complexes formed after mutual diffusion.

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