A cyanine dye rotaxane porphyrin nanoring complex as a model light harvesting system
Abstract
A nanoring-rotaxane supramolecular assembly, with a Cy7 cyanine dye (hexamethylindotricarbocyanine) threaded along the axis of the nanoring, has been synthesized as a model for the energy transfer between the light harvesting complex LH1 and the reaction center in purple bacteria photosynthesis. The complex displays efficient energy transfer from the central cyanine dye to the surrounding zinc porphyrin nanoring. We present a theoretical model that reproduces the absorption spectrum of the nanoring and quantifies the excitonic coupling between the nanoring and the central dye, explaining the efficient energy transfer and elucidating the similarity with structurally related natural light harvesting systems.
Keywords
Cite
@article{arxiv.2006.08349,
title = {A cyanine dye rotaxane porphyrin nanoring complex as a model light harvesting system},
author = {Jiratheep Pruchyathamkorn and William J. Kendrick and Andrew T. Frawley and Andrea Mattioni and Felipe Caycedo-Soler and Susana F. Huelga and Martin B. Plenio and Harry L. Anderson},
journal= {arXiv preprint arXiv:2006.08349},
year = {2021}
}
Comments
5 pages, 6 figures, a revised version of the article is accepted and will be published in Angewandte Chemie, we are posting the preprint in accordance with the preprint policies of Angewandte Chemie