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  • Title: Direct and indirect electron emission from the green fluorescent protein chromophore.
    Author: Toker Y, Rahbek DB, Klaerke B, Bochenkova AV, Andersen LH.
    Journal: Phys Rev Lett; 2012 Sep 21; 109(12):128101. PubMed ID: 23005990.
    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.
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