Synthesis, characterization, and systematic structure–property investigation of a series of carbazole–thiophene derivatives
- Авторлар: Damit E.1, Nordin N.1, Ariffin A.1, Sulaiman K.2
-
Мекемелер:
- Chemistry Department, Faculty of Science
- Physics Department, Faculty of Science
- Шығарылым: Том 87, № 8 (2017)
- Беттер: 1800-1812
- Бөлім: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/221081
- DOI: https://doi.org/10.1134/S1070363217080278
- ID: 221081
Дәйексөз келтіру
Аннотация
A series of carbazole–thiophene oligomers linked at the 3,6-positions of the carbazole fragment of 4,4′-bis(carbazol-9-yl)biphenyl (CBP) and 4,4′-bis(carbazol-9-yl)-2,2′-dimethylbiphenyl (CDBP) with systematically elongated molecular lengths were synthesized via the Suzuki–Miyaura and Ullmann coupling reactions. Their electronic properties were studied by UV-Vis, cyclic voltammetry, and theoretical calculations. The coupling of CBP and CDBP with thiophene and bi- and terthiophene residues stabilized the HOMO and LUMO energy levels. The absorption and emission spectra exhibited a gradual red shift. The compounds with oligothiophene units had greatly decreased band gaps compared with CBP and CDBP. Therefore, these units may be introduced into the backbone of π-conjugated small molecules to develop new materials with low band gaps that may have potential applications in optoelectronics.
Негізгі сөздер
Авторлар туралы
E. Damit
Chemistry Department, Faculty of Science
Email: azhar70@um.edu.my
Малайзия, Lembah Pantai, Kuala Lumpur, 50603
N. Nordin
Chemistry Department, Faculty of Science
Email: azhar70@um.edu.my
Малайзия, Lembah Pantai, Kuala Lumpur, 50603
A. Ariffin
Chemistry Department, Faculty of Science
Хат алмасуға жауапты Автор.
Email: azhar70@um.edu.my
Малайзия, Lembah Pantai, Kuala Lumpur, 50603
K. Sulaiman
Physics Department, Faculty of Science
Email: azhar70@um.edu.my
Малайзия, Lembah Pantai, Kuala Lumpur, 50603