Document Type
Article
Publication Date
1-1-2016
Abstract
A series of carbazole-thiophene dimers, P1–P9, were synthesized using Suzuki-Miyaura and Ullmann coupling reactions. In P1–P9, carbazole-thiophenes were linked at the N-9 position for different core groups via biphenyl, dimethylbiphenyl, and phenyl. Electronic properties were evaluated by UV-Vis, cyclic voltammogram, and theoretical calculations. Particularly, the effects of conjugation connectivity on photophysical and electrochemical properties, as well as the correlation between carbazole-thiophene and the core, were studied. Carbazole connecting with thiophenes at the 3,6-positions and the phenyl group as a core group leads to increased stabilization of HOMO and LUMO energy levels where the bandgap () is significantly reduced.
Keywords
Synthesis, Novel Derivatives, Carbazole-Thiophene, Electronic Properties, Computational Studies
Divisions
CHEMISTRY,PHYSICS
Funders
Long Term Research Grant Scheme (LRGS) (LR003-2011A),High Impact Research Grant (HIR) (UM.C/625/1/HIR/208) (J-21001-73865),Postgraduate Research Grant (PPP) (PG021-2013A)
Publication Title
Journal of Chemistry
Volume
2016
Publisher
Hindawi Publishing Corporation