Photosynthetic light harvesting and energy conversion
Name
100401_1_5.0170807.pdf
Description
Published version
Size
2.87 MB
Format
Adobe PDF
Checksum (MD5)
ec48477104714295458bde6925ca0e97
Author(s)
Fleming, Graham R
Minagawa, Jun
Renger, Thomas
Schlau-Cohen, Gabriela S
Date Issued
September 8, 2023
Journal
The Journal of Chemical Physics
Publisher
AIP Publishing
Citation
Graham R. Fleming, Jun Minagawa, Thomas Renger, Gabriela S. Schlau-Cohen; Photosynthetic light harvesting and energy conversion. J. Chem. Phys. 14 September 2023; 159 (10): 100401.
Version
Final published version
Abstract
The primary photophysical and photochemical reactions in photosynthesis provide the basis for oxygenic life on our planet. The study of these reactions is challenging in many respects. Two important points dealt with in the present Special Topic issue on “Photosynthetic Light-Harvesting and Energy Conversion” are the following:
1. Pigment–protein complexes undergo conformational transitions on many different timescales that include transitions between functionally relevant modes of light harvesting and photoprotection. X-ray crystallography and cryogenic electron microscopy have made enormous strides in revealing the molecular structures of subunits and supercomplexes of many different photosynthetic systems. These structural models and spectroscopic experiments provide the basis for deciphering structure–function relationships. However, additional experimental and theoretical studies are needed in order to characterize the structural dynamics that are crucial for function.
2. Pigment–protein complexes are difficult to describe theoretically. A full ab initio description is impossible because these systems are too complex and ab initio methods are not accurate enough. Therefore, multiscale methods are needed that must be tested and calibrated by comparison with experimental data. Two essential points of such modeling concern the parametrization of an effective Hamiltonian known as Frenkel exciton (charge transfer state) Hamiltonian and the study of the quantum dynamics of excited states with this Hamiltonian.
This Special Topic issue provides a collection of recent efforts to master the above challenges.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1063/5.0170807
