Electron transfer in a donor-substituted acridinium dye: Evidence for dynamical solvent control

M. L. Horng, K. Dahl, G. Jones, M. Maroncelli

Research output: Contribution to journalArticlepeer-review

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Abstract

Time-resolved emission is used to explore the intramolecular excited-state electron transfer in a donor-substituted acridinium dye in a variety of solvents at room temperature. Emission decays are predominantly bi-exponential, with the faster of the two time constants being a good measure of the charge transfer time. In 14 high-polarity solvents this time is correlated to the solvation times previously measured with the solvation probe Coumarin 153 via an apparent power law, τLE→CT≈8.4〈τ〉solv 0.65. In solvents less polar than acetone the times observed deviate widely from this relationship, probably due to the effects of ion pairing.

Original languageEnglish (US)
Pages (from-to)363-370
Number of pages8
JournalChemical Physics Letters
Volume315
Issue number5-6
DOIs
StatePublished - Dec 31 1999

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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