title: Exploring Autoionization and Photoinduced Proton-Coupled Electron Transfer Pathways of Phenol in Aqueous Solution.
abstract: The excited state dynamics of phenol in water have been investigated using transient absorption spectroscopy. Solvated electrons and vibrationally cold phenoxyl radicals are observed upon 200 and 267 nm excitation, but with formation time scales that differ by more than 4 orders of magnitude. The impact of these findings is assessed in terms of the relative importance of autoionization versus proton-coupled electron transfer mechanisms in this computationally tractable model system.
authors.affiliation: School of Chemistry, University of Bristol , Bristol, BS8 1TS, United Kingdom.
authors.forename: Thomas A A
authors.initials: TA
authors.lastname: Oliver
authors.affiliation: University of Southern California , Los Angeles, California 90089, United States.
authors.forename: Yuyuan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: University of Southern California , Los Angeles, California 90089, United States.
authors.forename: Anirban
authors.initials: A
authors.lastname: Roy
authors.affiliation: School of Chemistry, University of Bristol , Bristol, BS8 1TS, United Kingdom.
authors.forename: Michael N R
authors.initials: MN
authors.lastname: Ashfold
authors.affiliation: University of Southern California , Los Angeles, California 90089, United States.
authors.forename: Stephen E
authors.initials: SE
authors.lastname: Bradforth
mesh_terms: D017666:Deuterium Oxide / Q000737:chemistry; D004579:Electron Transport; D004583:Electrons; D007477:Ions / Q000737:chemistry; D019800:Phenol / Q000737:chemistry*; D011522:Protons; D014867:Water / Q000737:chemistry*
chemical_list: D007477:Ions; D011522:Protons; D014867:Water; D019800:Phenol; D017666:Deuterium Oxide
keywords: UV photochemistry; electron transfer; nonradiative decay; proton transfer; solvated electrons