67200-29-7Relevant academic research and scientific papers
Synthesis, photophysical and nonlinear optical properties of [1,2,5]oxadiazolo[3,4-b]pyrazine-based linear push-pull systems
Achelle, Sylvain,Barsella, Alberto,Bure?, Filip,Charushin, Valery N.,Chupakhin, Oleg N.,Guen, Fran?oise Robin-le,Kvashnin, Yuriy A.,Rusinov, Gennady L.,Verbitskiy, Egor V.,le Poul, Pascal
, (2021)
A series of D-π-A chromophores based on [1,2,5]oxadiazolo[3,4-b]pyrazine electron-withdrawing group has been designed. The influence of the π-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.
