Peripheral substitution as a tool for tuning electron-accepting properties of phthalocyanine analogs in intramolecular charge transfer

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11160%2F15%3A10297699" target="_blank" >RIV/00216208:11160/15:10297699 - isvavai.cz</a>
Result on the web
<a href="http://pubs.rsc.org/en/content/articlehtml/2015/dt/c5dt00400d" target="_blank" >http://pubs.rsc.org/en/content/articlehtml/2015/dt/c5dt00400d</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c5dt00400d" target="_blank" >10.1039/c5dt00400d</a>

Result language
angličtina
Original language name
Peripheral substitution as a tool for tuning electron-accepting properties of phthalocyanine analogs in intramolecular charge transfer
Original language description
The intramolecular charge transfer (ICT), which is a pathway for excited state relaxation, was studied on the newly synthesized zinc(II) complexes of tetrapyrazinoporphyrazines bearing one fixed donor (i. e., a dialkylamino substituent). The rest of theperipheral substituents on the core was designed with respect to their different electronic effects (OBu, neopentyl, StBu, COOBu). The photophysical (singlet oxygen and fluorescence quantum yields) and electrochemical (reduction potentials) properties were determined and compared within the series and with compounds that did not contain a donor moiety. The ICT efficiency correlated well with both the electron-deficient character of the core and the Hammett substituent constants sp. The most efficient ICT was observed for the core with the most electron-accepting substituent (COOBu), and the lowest ICT efficiency was detected for the least electron-deficient core (substituted by OBu). Titration of DMSO solutions of target compounds with
Czech name
—
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
—

Project
<a href="/en/project/GP14-02165P" target="_blank" >GP14-02165P: Red-emitting Fluorescence Sensors Based on Azaphthalocynine Structure: Study of Aza-Crown Recognition Moiety</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

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