TY - JOUR
AU - Wyatt Zagorec-Marks
AU - Madison Foreman
AU - Jan Verlet
AU - J. Mathias Weber
AB - We present the spectrum of the S1 ← S0 transition of an anionic model for the chromophore of the green fluorescent protein in vacuo at cryogenic temperatures, showing previously unresolved vibrational features, and resolving the band origin at 20 930 cm–1 (477.8 nm) with unprecedented accuracy. The vibrational spectrum establishes that the molecule is in the Z isomer at low temperature. At increased temperature, the S1 ← S0 band shifts to the red, which we tentatively attribute to emergent population of the E isomer.
BT - The Journal of Physical Chemistry Letters
DA - 2019-11
DO - 10.1021/acs.jpclett.9b02916
N2 - We present the spectrum of the S1 ← S0 transition of an anionic model for the chromophore of the green fluorescent protein in vacuo at cryogenic temperatures, showing previously unresolved vibrational features, and resolving the band origin at 20 930 cm–1 (477.8 nm) with unprecedented accuracy. The vibrational spectrum establishes that the molecule is in the Z isomer at low temperature. At increased temperature, the S1 ← S0 band shifts to the red, which we tentatively attribute to emergent population of the E isomer.
PY - 2019
SP - 7817
EP - 7822
T2 - The Journal of Physical Chemistry Letters
TI - Cryogenic Ion Spectroscopy of the Green Fluorescent Protein Chromophore in Vacuo
UR - https://pubs.acs.org/doi/full/10.1021/acs.jpclett.9b02916
VL - 10
SN - 1948-7185
ER -