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Insights into the modulation of light absorption by chlorophyll in green plants

Authors: Joaquim Jornet-Somoza, Joseba Alberdi-Rodriguez, Bruce F. Milne, Xavier Andrade, M.A.L. Marques, Fernando Nogueira, Micael J. T. Oliveira, and Angel Rubio

Ref.: Phys. Chem. Chem. Phys. 17, 26599-26606 (2015)

Abstract: Full first–principles calculations within the framework of real–space time–dependent density functional theory have been performed for the complete chlorophyll (Chl) network of the light–harvesting complex from green plants, LHC-II. A local-dipole analysis method developed for this work has made possible quantum–mechanical studies of the optical response of individual Chl molecules subject to the influence of the remainder of the chromophore network. The site-specific alterations in Chl excitation energies support the existence of distinct energy transfer pathways within the LHC-II complex. The spectra calculated with our real–space TDDFT method support recent experimental work which suggested that non-specific interactions with the protein microenvironment should produce only minor changes in the absorption spectrum.

This article was chosen to illustrate the cover of vol 17, issue 40 of Phys. Chem. Chem. Phys.

Citations: 34 (Google scholar)

DOI: 10.1039/C5CP03392F

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Bibtex:

@article{Jornet_Somoza_2015,
	doi = {10.1039/c5cp03392f},
	url = {https://doi.org/10.1039%2Fc5cp03392f},
	year = 2015,
	publisher = {Royal Society of Chemistry ({RSC})},
	volume = {17},
	number = {40},
	pages = {26599--26606},
	author = {Joaquim Jornet-Somoza and Joseba Alberdi-Rodriguez and Bruce F. Milne and Xavier Andrade and Miguel A. L. Marques and Fernando Nogueira and Micael J. T. Oliveira and James J. P. Stewart and Angel Rubio},
	title = {Insights into colour-tuning of chlorophyll optical response in green plants},
	journal = {Physical Chemistry Chemical Physics}
}