Publication detail

Synthesis, photophysical and nonlinear optical properties of [1,2,5] oxadiazolo[3,4-b]pyrazine-based linear push-pull systems

Year: 2021

Type of publication: článek v odborném periodiku

Name of source: Journal of Photochemistry and Photobiology A-Chemistry

Publisher name: Elsevier Science SA

Place: Lausanne

Page from-to: 112900

Titles:

Language	Name	Abstract	Keywords
cze	Syntéza, fotofyzikální a nelineární optické vlastnosti lineárních push-pull systémů na bázi [1,2,5]oxadiazolo[3,4-b]pyrazin	Byla připravena série D-pi-A chromoforů na bázi elektronakceptorního skeletu [1,2,5]oxadiazolo[3,4-b]pyrazinu. Prostřednictvím cyklické voltametrie, UV-Vis a emisní spectroskopie byl studován vliv pi-konjugovaného linkeru (1,4-fenylen and 2,5-thienylen) a elektrondonorního substituentu aminového typu (difenylamino and karbazol-9-yl). Experimentální data byla konfrontována s výsledky DFT kalkulací.	donor-akceptorový systém; nelineární optika; fluorescence; pyrazin
eng	Synthesis, photophysical and nonlinear optical properties of [1,2,5] oxadiazolo[3,4-b]pyrazine-based linear push-pull systems	A series of D-pi-A chromophores based on [1,2,5]oxadiazolo[3,4-b]pyrazine electron-withdrawing group has been designed. The influence of the pi-conjugated linker (1,4-phenylene and 2,5-thienylene) and the amino-electron-donating group (diphenylamino and carbazol-9-yl) was studied by cyclic voltammetry, UV-Vis and emission spectroscopy. The second order nonlinear optical properties were also studied using the electric field induced second harmonic generation (EFISH) method. The experimental results have been rationalized by theoretical DFT calculations.	nitrogen heterocycles; donor-acceptor systems; nonlinear optic; fluorescence; intramolecular charge transfer

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