Work

Internal vibrational energy redistribution precedes energy dissipation into the solvent upon photoexcitation of heme proteins

Year: 2025

Type: article

Abstract: and myoglobin are in excellent agreement with the computational model. This suggests a diffusive energy transfer for the release of excitation energy from the excited heme group through the protein as the dominant pathway of energy flow to the surrounding solvent in heme proteins. We also observe a notable isotope effect suggesting a complex coupling of the protein to the solvent.

Source: Physical Chemistry Chemical Physics

DOI: 10.1039/d5cp00797f

Authors: Adrian Buchmann, Luigi Caminiti, Lion Luca Stiewe, Sebastian Jung, David M. Leitner, Martina Havenith

Institutions: Ruhr University Bochum, European Laboratory for Non-Linear Spectroscopy, University of Florence, University of Nevada, Reno

Language: English

Topic: Photochemistry and Electron Transfer Studies

Subfield: Physical and Theoretical Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Science Foundation, Deutsche Forschungsgemeinschaft, Bundesministerium für Bildung und Forschung, Division of Chemistry

Awards: EXC 2033: RESOLV (Ruhr Explores Solvation), G274347230, Modeling Energy Dynamics and Thermal Transport in Molecules, G7560308299