171418-24-9Relevant articles and documents
Room temperature liquid crystalline perylene diester benzimidazoles with extended absorption
Wicklein, Andre,Muth, Mathis-Andreas,Thelakkat, Mukundan
, p. 8646 - 8652 (2010)
The synthesis, characterization and thermotropic properties of novel asymmetrically substituted discotic molecules, perylene diester benzimidazoles (PDBIs), are presented. PDBIs were designed with an imidazole unit at 3,4 positions and a bisester moiety a
2,1,3-Benzoxadiazole and 2,1,3-benzothiadiazole-based fluorescent compounds: Synthesis, characterization and photophysical/electrochemical properties
Behramand, Behramand,Molin, Fernando,Gallardo, Hugo
, p. 600 - 605 (2012/11/06)
Six new fluorescent compounds derived from 2,1,3-benzoxadiazole and 2,1,3-benzothiadiazole heterocycles with varying numbers of alkoxy chains were successfully synthesized. Sonogashira cross-coupling was used as the key synthetic step to link the central and terminal aromatic units through an acetylenic linker unit which ensures molecular planarity and extension of the conjugation. All of the synthesized compounds showed UV-vis absorption in the 426-437 nm range with reasonably high molar extinction coefficients. All six compounds emit in the green region of the visible spectrum with reasonably large Stokes shifts (95-107 nm) and medium emission efficiencies (Φf = 0.27-0.32). Electrochemical studies showed that the compounds have closely spaced HOMO and LUMO energy levels and that they may present good electron transporting properties.
New moderate bandgap polymers containing alkoxysubstituted-benzo[c][1,2,5] thiadiazole and thiophene-based units
Lim, Zheng Bang,Xue, Bofei,Bomma, Swarnalatha,Li, Hairong,Sun, Shuangyong,Lam, Yeng Ming,Belcher, Warwick J.,Dastoor, Paul C.,Grimsdale, Andrew C.
experimental part, p. 4387 - 4397 (2012/05/20)
Alkoxysubstituted benzo[c][1,2,5]thiadiazole electron accepting units were prepared and copolymerized with various thiophene-based electron donating monomers to produce new low bandgap polymers P1-4. The materials showed broad absorption in the range from