Effect of intramolecular charge transfer on fluorescence and singlet oxygen production of phthalocyanine analogues

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11160%2F12%3A10124690" target="_blank" >RIV/00216208:11160/12:10124690 - isvavai.cz</a>
Result on the web
<a href="http://pubs.rsc.org/en/content/articlehtml/2012/dt/c2dt31403g" target="_blank" >http://pubs.rsc.org/en/content/articlehtml/2012/dt/c2dt31403g</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c2dt31403g" target="_blank" >10.1039/c2dt31403g</a>

Result language
angličtina
Original language name
Effect of intramolecular charge transfer on fluorescence and singlet oxygen production of phthalocyanine analogues
Original language description
Intramolecular charge transfer (ICT) was studied on a series of magnesium, metal-free and zinc complexes of unsymmetrical tetrapyrazinoporphyrazines and tribenzopyrazinoporphyrazines bearing two dialkylamino substituents (donors) and six alkylsulfanyl oraryloxy substituents (non-donors). The dialkylamino substituents were responsible for ICT that deactivated excited states and led to considerable decrease of fluorescence and singlet oxygen quantum yields. Photophysical and photochemical properties werecompared to corresponding macrocycles that do not bear any donor centers. The data showed high feasibility of ICT in the tetrapyrazinoporphyrazine macrocycle and significantly lower efficiency of this deactivation process in the tribenzopyrazinoporphyrazine type molecules. Considerable effect of non-donor peripheral substituents on ICT was also described. The results imply that tetrapyrazinoporphyrazines may be more suitable for development of new molecules investigated in applications
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
CC - Organic chemistry
OECD FORD branch
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Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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