A Unified Picture of S* in Carotenoids

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F16%3A43890797" target="_blank" >RIV/60076658:12310/16:43890797 - isvavai.cz</a>
Result on the web
<a href="http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.6b01455" target="_blank" >http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.6b01455</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpclett.6b01455" target="_blank" >10.1021/acs.jpclett.6b01455</a>

Result language
angličtina
Original language name
A Unified Picture of S* in Carotenoids
Original language description
In pi-conjugated chain molecules such as carotenoids, coupling between electronic and vibrational degrees of freedom is of central importance. It governs both dynamic and static properties, such as the time scales of excited state relaxation as well as absorption spectra. In this work, we treat vibronic dynamics in carotenoids on four electronic states (vertical bar S-0 >, vertical bar S-1 >, vertical bar S-2 >, and vertical bar S-n >) in a physically rigorous framework. This model explains all features previously associated with the intensely debated S* state. Besides successfully fitting transient absorption data of a zeaxanthin homologue, this model also accounts for previous results from global target analysis and chain length-dependent studies. Additionally, we are able to incorporate findings from pump-deplete-probe experiments, which were incompatible to any pre-existing model. Thus, we present the first comprehensive and unified interpretation of S*-related features, explaining them by vibronic transitions on either S-1, S-0, or both, depending on the chain length of the investigated carotenoid.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
—

Project
<a href="/en/project/GA16-10417S" target="_blank" >GA16-10417S: Carotenoids in light-harvesting and photoprotection – new approaches using multipulse femtosecond spectroscopy</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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