Spectroscopic properties of the triple bond carotenoid alloxanthin

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F16%3A43890791" target="_blank" >RIV/60076658:12310/16:43890791 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0009261416302706" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0009261416302706</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cplett.2016.04.085" target="_blank" >10.1016/j.cplett.2016.04.085</a>

Result language
angličtina
Original language name
Spectroscopic properties of the triple bond carotenoid alloxanthin
Original language description
Alloxanthin, which has two triple bonds within its backbone, was studied by steady-state and femtosecond transient absorption spectroscopies. Alloxanthin demonstrates an S-2 energy comparable to its non-triple bond homolog, zeaxanthin, while the S-1 lifetime of 19 ps is markedly longer than that of zeaxanthin (9 ps). Along with corroborating quantum chemistry calculations, the results show that the long-lived S1 state of alloxanthin, which typically corresponds to the dynamic of a shorter carotenoid backbone, implies the triple bond isolates the conjugation of the backbone, increasing the S-1 state energy and diminishing the S-1-S-2 energy gap.
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
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/GBP501%2F12%2FG055" target="_blank" >GBP501/12/G055: Photosynthesis Research Center</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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