Photoacid-base reaction in ice via a mobile L-defect

Anna Uritski, Dan Huppert*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A time-resolved emission technique was employed to study the photoprotolytic cycle of two photoacids 2-naphtol-6-sulfonate (2N6S) and 2-naphtol-6,8-disulfonate (2N68DS) in ice in the presence of a low concentration of a weak base fluoride ion. We found that an additional proton-transfer process occurs in ice doped with F- ions. This reaction takes place between a mobile L-defect (created by static F- ions) and the photoacid. We used a diffusion assisted reaction model, based on the Debye-Smoluchowski equation, to account for the direct reaction of the L-defect with the excited photoacid.

Original languageEnglish
Pages (from-to)3066-3078
Number of pages13
JournalJournal of Physical Chemistry A
Issue number14
StatePublished - 10 Apr 2008


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