title: Direct and indirect electron emission from the green fluorescent protein chromophore.
abstract: Photoelectron spectra of the deprotonated green fluorescent protein chromophore have been measured in the gas phase at several wavelengths within and beyond the S(0)-S(1) photoabsorption band of the molecule. The vertical detachment energy (VDE) was determined to be 2.68 ± 0.1 eV. The data show that the first electronically excited state is bound in the Franck-Condon region, and that electron emission proceeds through an indirect (resonant) electron-emission channel within the corresponding absorption band.
authors.affiliation: Department of Physics and Astronomy, Aarhus University, Denmark.
authors.forename: Y
authors.initials: Y
authors.lastname: Toker
authors.forename: D B
authors.initials: DB
authors.lastname: Rahbek
authors.forename: B
authors.initials: B
authors.lastname: Klaerke
authors.forename: A V
authors.initials: AV
authors.lastname: Bochenkova
authors.forename: L H
authors.initials: LH
authors.lastname: Andersen
mesh_terms: D001593:Benzyl Compounds / Q000737:chemistry*; D049452:Green Fluorescent Proteins / Q000737:chemistry*; D048288:Imidazolines / Q000737:chemistry*; D008956:Models, Chemical; D056004:Molecular Dynamics Simulation; D056951:Photoelectron Spectroscopy / Q000379:methods
chemical_list: D001593:Benzyl Compounds; D048288:Imidazolines; C529028:p-hydroxybenzylideneimidazolinone; D049452:Green Fluorescent Proteins