Naphthalene Bis(4,8-diamino-1,5-dicarboxyl)amide Building Block for Semiconducting Polymers
作者:Brian J. Eckstein、Ferdinand S. Melkonyan、Eric F. Manley、Simone Fabiano、Aidan R. Mouat、Lin X. Chen、Antonio Facchetti、Tobin J. Marks
DOI:10.1021/jacs.7b07750
日期:2017.10.18
We report a new naphthalene bis(4,8-diamino-1,5-dicarboxyl)amide (NBA) building block for polymeric semiconductors. Computational modeling suggests that regio-connectivity at the 2,6- or 3,7-NBA positions strongly modulates polymer backbone torsion and, therefore, intramolecular π-conjugation and aggregation. Optical, electrochemical, and X-ray diffraction characterization of 3,7- and 2,6-dithienyl-substituted
我们报告了一种用于聚合物半导体的新型萘双(4,8-二氨基-1,5-二羧基)酰胺(NBA)构件。计算模型表明,在2,6-或3,7-NBA位置的区域连接性强烈调节聚合物主链的扭转,从而调节分子内π的共轭和聚集。3,7-和2,6-二噻吩基取代的NBA分子以及相应的异构NBA-联噻吩共聚物P1和P2的光学,电化学和X射线衍射表征分别揭示了区域连接性的关键作用。电荷传输测量表明,虽然扭曲的基于3,7-NDA的P1是不良的半导体,但平面的2,6-官能化的NBA聚合物(P2-P4)表现出双极性,μÈ和μ ħ起来至0.39和0.32厘米2分别/(V·S)。