Roles of octabutoxy substitution and J-aggregation in stabilization of the excited state in nickel phthalocyanine

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00431083" target="_blank" >RIV/61389013:_____/14:00431083 - isvavai.cz</a>
Alternative codes found
RIV/28778758:_____/14:#0000067
Result on the web
<a href="http://dx.doi.org/10.1021/jp5036629" target="_blank" >http://dx.doi.org/10.1021/jp5036629</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/jp5036629" target="_blank" >10.1021/jp5036629</a>

Result language
angličtina
Original language name
Roles of octabutoxy substitution and J-aggregation in stabilization of the excited state in nickel phthalocyanine
Original language description
Nickel phthalocyanine (NiPc) complexes are known to show a rapid nonradiative deactivation of the photoexcited state through the internal conversion. This could be exploited in practical applications, such as photoprotection and photodynamic therapy. Thebutoxy substitution of NiPc plays an important role for drug delivery but also greatly influences its photophysics. We prepared novel peripherally substituted 2,3,9,10,16,17,23,24-octabutoxy nickel(II) phthalocyanine and characterized the deactivation pathway of its photoexcited state in solution by femtosecond transient absorption spectroscopy and quantum chemical calculations. We bring experimental evidence for the kinetic model, in which the photoexcitation evolves in two independent branches. In the first branch, assigned to the monomer, it undergoes ultrafast intersystem crossing to a triplet state, which subsequently decays to the ground state through a pathway involving lower-lying triplet states, with a ground-state recovery li
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
JA - Electronics and optoelectronics
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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