Tuning the Spectroscopic Properties of Aryl Carotenoids by Slight Changes in Structure

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F15%3A43888684" target="_blank" >RIV/60076658:12310/15:43888684 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/jp512354r" target="_blank" >http://dx.doi.org/10.1021/jp512354r</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/jp512354r" target="_blank" >10.1021/jp512354r</a>

Result language
angličtina
Original language name
Tuning the Spectroscopic Properties of Aryl Carotenoids by Slight Changes in Structure
Original language description
Two carotenoids with aryl rings were studied by femtosecond transient absorption spectroscopy and theoretical computational methods, and the results were compared with those obtained from their nonaryl counterpart, beta-carotene. Although isorenieratenehas more conjugated C-C bonds than beta-carotene, its effective conjugation length, Neff, is shorter than of b-carotene. This is evidenced by a longer S-1 lifetime and higher S-1 energy of isorenieratene compared to the values for beta-carotene. On the other hand, although isorenieratene and renierapurpurin have the same pi-electron conjugated chain structure, Neff is different for these two carotenoids. The S-1 lifetime of renierapurpurin is shorter than that of isorenieratene, indicating a longer Nefffor renierapurpurin. This conclusion is also consistent with a lower S-1 energy of renierapurpurin compared to those of the other carotenoids. Density functional theory (DFT) was used to calculate equilibrium geometries of ground and exc
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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