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Beilstein J. Org. Chem. 2014, 10, 1596–1602, doi:10.3762/bjoc.10.165
Graphical Abstract
Scheme 1: Synthesis of ethyl 3-decyl-2,2'-bithiophene-5-carboxylate (3).
Scheme 2: Synthesis of ethyl 4-(hexyloxy)-2,2'-bithiophene-5-carboxylate (7).
Scheme 3: Hydrolysis and hydrazinolysis of esters 8–10.
Scheme 4: Synthesis of 2,5-bis(2,2'-bithiophen-5-yl)-1,3,4-oxadiazoles 13 and 14 and 1,3,4-thiadiazole 15.
Scheme 5: Synthesis of 3,5-bis(3-decyl-2,2'-bithiophen-5-yl)-4-phenyl-4H-1,2,4-triazole (18).
Figure 1: UV–vis absorption and fluorescence spectra of diluted solutions of a) 13, b) 14, c) 15, and d) 18 i...
Figure 2: Photoluminescence quantum yields measured for 13, 15 and 18 together with their formulae.