1351206-29-5Relevant articles and documents
Synthesis and characterization of planar five-ring-fused dithiophene-dione
Wang, Jing,Zeng, Weijing,Xu, Huan,Li, Bin,Cao, Xiaoping,Zhang, Haoli
, p. 681 - 688 (2012/06/04)
A series of new organic semiconductors based on s-indaceno[1,2-b:5,6- b′]dithiophene-4,9-dione was successfully synthesized and characterized. The electron withdrawing carbonyl group lowers the LUMO energy levels, leading to increased electronegativities, which is beneficial for high photo-stability in air. The n-alkyl substituted compounds, 1c and 1d, crystallize with the rigid coplanar systems packed into slipped face-to-face π-stacks. Interestingly, 1c and 1d also show liquid crystalline behaviors, which give highly ordered molecular packing over large area.