Related Experiment Video
Updated: Feb 9, 2026

Scanning-probe Single-electron Capacitance Spectroscopy
Published on: July 30, 2013
Infrared Spectroscopy as a Probe of Electronic Energy Transfer
Valeriu Scutelnic1, Antonio Prlj2, Aleksandra Zabuga1
1Laboratory of Molecular Physical Chemistry , Ecole Polytechnique Fédérale de Lausanne , Station 6 , CH-1015 Lausanne , Switzerland.
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.
More Related Videos
08:51Atomic Force Microscopy Combined with Infrared Spectroscopy as a Tool to Probe Single Bacterium Chemistry
Published on: September 15, 2020
10:03Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
Published on: June 27, 2014
Related Concept Videos
Ionic Bonding and Electron Transfer
Infrared (IR) Spectroscopy: Overview
Different compounds display unique properties due to their...
Energy Transfer in Chemical Reactions
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview
The ATR process begins by directing a beam...
Electron Carriers
Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
Ionization Energy