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Lewis NHC, Gruenke NL, Oliver TAA, et al. Observation of Electronic Excitation Transfer Through Light Harvesting Complex II Using Two-Dimensional Electronic-Vibrational Spectroscopy. J Phys Chem Lett. 2016;7(20):4197-4206doi: 10.1021/acs.jpclett.6b02280.
Lewis, N. H. C., Gruenke, N. L., Oliver, T. A. A., Ballottari, M., Bassi, R., & Fleming, G. R. (2016). Observation of Electronic Excitation Transfer Through Light Harvesting Complex II Using Two-Dimensional Electronic-Vibrational Spectroscopy. The journal of physical chemistry letters, 7(20), 4197-4206. https://doi.org/10.1021/acs.jpclett.6b02280
Lewis, Nicholas H C, et al. "Observation of Electronic Excitation Transfer Through Light Harvesting Complex II Using Two-Dimensional Electronic-Vibrational Spectroscopy." The journal of physical chemistry letters vol. 7,20 (2016): 4197-4206. doi: https://doi.org/10.1021/acs.jpclett.6b02280
Lewis NHC, Gruenke NL, Oliver TAA, Ballottari M, Bassi R, Fleming GR. Observation of Electronic Excitation Transfer Through Light Harvesting Complex II Using Two-Dimensional Electronic-Vibrational Spectroscopy. J Phys Chem Lett. 2016 Oct 20;7(20):4197-4206. doi: 10.1021/acs.jpclett.6b02280. Epub 2016 Oct 10. PMID: 27704843; PMCID: PMC6314458.
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J Phys Chem Lett. 2016 Oct 20;7(20):4197-4206. doi: 10.1021/acs.jpclett.6b02280. Epub 2016 Oct 10.

Observation of Electronic Excitation Transfer Through Light Harvesting Complex II Using Two-Dimensional Electronic-Vibrational Spectroscopy.

The journal of physical chemistry letters

Nicholas H C Lewis, Natalie L Gruenke, Thomas A A Oliver, Matteo Ballottari, Roberto Bassi, Graham R Fleming

Affiliations

  1. Department of Chemistry, University of California , Berkeley, California 94?720, United States.
  2. Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States.
  3. Kavli Energy Nanoscience Institute at Berkeley, Berkeley, California 94720, United States.
  4. Dipartimento di Biotecnologie, Facoltà di Scienze, Universitá di Verona , Strada Le Grazie, I-37134 Verona, Italia.

PMID: 27704843 PMCID: PMC6314458 DOI: 10.1021/acs.jpclett.6b02280

Abstract

Light-harvesting complex II (LHCII) serves a central role in light harvesting for oxygenic photosynthesis and is arguably the most important photosynthetic antenna complex. In this work, we present two-dimensional electronic-vibrational (2DEV) spectra of LHCII isolated from spinach, demonstrating the possibility of using this technique to track the transfer of electronic excitation energy between specific pigments within the complex. We assign the spectral bands via comparison with the 2DEV spectra of the isolated chromophores, chlorophyll a and b, and present evidence that excitation energy between the pigments of the complex are observed in these spectra. Finally, we analyze the essential components of the 2DEV spectra using singular value decomposition, which makes it possible to reveal the relaxation pathways within this complex.

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