Benzothiadiazoloperylenes and Benzoxadiazoloperylenes: Amorphous Functional Materials
摘要:
2,1,3-Benzothiadiazole or 2,1,3-benzoxadiazole were magnesiated (TMP2Mg center dot 2LiCl) and efficiently attached to perylene and benzoperylene building blocks providing amorphous light-absorbing materials where FRET energy transfer proceeds between the 2,1,3-benzothiadiazole or 2,1,3-benzoxadiazole and the perylene units. Some of these new materials were obtained as amorphous solids of interest for material science.
There are provided compounds of the formula D-S1-A-S2-B1 wherein A comprises a 2,7- disubstituted 9,9-fluoroalkyl fluorene diradical of the formula wherein S1, S2, D and B1 have meanings given in the description that are useful as charge transport and emissive materials for the fabrication of electronic devices such as diodes, transistors, and photovoltaic devices.
The palladium‐catalyzed direct arylation of benzofurazans with arylbromides to access 4‐arylbenzofurazans proceeds in moderate‐to‐high yields using phosphine‐free palladium acetate as the catalyst and potassium acetate as an inexpensive base. A wide variety of (hetero)arylbromides, including bromopyridine and bromothiophene derivatives has been successfully employed. Palladium‐catalyzed one‐pot C‐4
Compounds of the formula D-S1-A-S2—B1 wherein A comprises a 2,7-disubstituted 9,9-fluoroalkyl fluorene diradical of the formula
wherein S1, S2, D and B1 have meanings given in the description that are useful as charge transport and emissive materials for the fabrication of electronic devices such as diodes, transistors, and photovoltaic devices.
2,1,3-Benzothiadiazole or 2,1,3-benzoxadiazole were magnesiated (TMP2Mg center dot 2LiCl) and efficiently attached to perylene and benzoperylene building blocks providing amorphous light-absorbing materials where FRET energy transfer proceeds between the 2,1,3-benzothiadiazole or 2,1,3-benzoxadiazole and the perylene units. Some of these new materials were obtained as amorphous solids of interest for material science.