Infrared Spectroscopy as a Probe of Electronic Energy Transfer

The Journal of Physical Chemistry Letters
Valeriu ScutelnicThomas R Rizzo

Abstract

We have combined electronic and vibrational spectroscopy in a cryogenic ion trap to produce highly resolved, conformer-selective spectra for the ground and excited states of a peptide containing two chromophores. These spectra permit us to determine the precise three-dimensional structure of the peptide and give insight into the migration of the electronic excitation from phenylalanine to tyrosine because changes in the excited-state infrared spectra are sensitive to localization of the electronic energy in each chromophore. The well-controlled experimental conditions make this result a stringent test for theoretical methods dealing with electronic energy transfer.

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Citations

Jun 22, 2019·Journal of the American Society for Mass Spectrometry·Lance E Talbert, Ryan R Julian
Oct 22, 2020·Journal of the American Society for Mass Spectrometry·Simon K GammelgaardPeter Kresten Nielsen
Apr 21, 2020·ACS Omega·Simon K GammelgaardPeter Kresten Nielsen
Aug 20, 2019·Chemical Reviews·Satchin SoorkiaGilles Grégoire
Sep 25, 2018·The Journal of Physical Chemistry Letters·Thomas RengerFrank Müh

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