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SYNTHESIS, OPTICAL AND ELECTROCHEMICAL PROPERTIES OF D1–A–D2–A–D1 TYPE CONJUGATED DONOR-ACCEPTOR ASSEMBLIES OF FIVE-MEMBERED AROMATIC HETEROCYCLES

Анастасия С. Костюченко, Евгений Б. Ульянкин, Татьяна Ю. Железнова, Сергей А. Черненко, Антон Л. Шацаускас, Даура Р. Абайдулина, Михаил О. Быструшкин, Анна Л. Самсоненко, Александр С. Фисюк
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Abstract


Novel conjugated systems of the D1-A-D2-A-D1 type were synthesized based on 3.3''-decyl[2.2':5',2''-terthiophene]-5.5''- and 3.3'''-didecyl[2.2':5',2'':5'',2'''-quaterthiophene]-5.5'''-dicarboxylic acids. In obtained systems, two electron-withdrawing heterocycles 1,3,4-thiadiazole or 1,3,4-oxadiazole are separated by alkyl-substituted thiophene units. The optical and electrochemical properties of all the synthesized structures were studied. The influence of the structure of the synthesized compounds on the band gap and the position of the boundary orbitals was established.

Authors: Anastasia S. Kostyuchenko*, Evgeny B. Ulyankin, Tatyana Yu. Zheleznova, Sergei A. Chernenko, Anton L. Shatsauskas, Daura R. Abaidulina, Mikhail O. Bystrushkin, Anna L. Samsonenko, Aleksander S. Fisyuk


Keywords


3-alkyl-2,2'-bithiophene-5-carboxylic acid esters; oligothiophenes; 1,3,4-oxadiazoles; [2,2':5',2'':5'',2'''-quaterthiophene]-5,5'''-dicarboxylic acids; [2,2':5',2''-terthiophene]-5,5''-dicarboxylic acids; 1,3,4-thiadiazoles

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