Modular establishment of a diketopyrrolopyrrole-based polymer library via Pd-catalyzed direct C-H (Hetero)arylation: a highly efficient approach to discover low-bandgap polymers.
A concise, highly efficient palladium-catalyzed direct C-H (hetero)arylation is developed to modularly assemble a diketopyrrolopyrrole (DTDPP)-based polymer library to screen low-bandgap and near-infrared (NIR) absorbing materials. The DTDPP-based copolymers P1 and P2 with an alternating donor-acceptor-donor-acceptor (D-A-D-A) sequence and the homopolymer P9 exhibit planarity and excellent π-conjugation, which lead to low bandgaps (down to 1.22 eV) as well as strong and broad NIR absorption bands (up to 1000 nm).
Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University, 29 Wangjiang Road, Chengdu 610064, PR China.
Qiang
Q
Guo
Jiaxing
J
Dong
Danyang
D
Wan
Di
D
Wu
Jingsong
J
You
D002384:Catalysis; D008027:Light; D015394:Molecular Structure; D010165:Palladium / Q000737:chemistry; D011108:Polymers / Q000138:chemical synthesis*; D011758:Pyrroles / Q000138:chemical synthesis*; D054852:Small Molecule Libraries / Q000138:chemical synthesis*; D019265:Spectroscopy, Near-Infrared
D011108:Polymers; D011758:Pyrroles; D054852:Small Molecule Libraries; D010165:Palladium