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. Issue 6 (31st January 2013)

• Record Type: Journal Article
• Authors: Guo, Qiang; Dong, Jiaxing; Wan, Danyang; Wu, Di; You, Jingsong
• Is Part Of: Macromolecular rapid communications. Volume 34:Issue 6(2013:Mar.)
• Page Start: 522
• Page End: 527
• Publication Date: 2013-01-31
• Subjects: Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.201200737
• Languages: English
• ISSNs: 1022-1336

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A concise, highly efficient palladium‐catalyzed direct C–H (hetero)arylation is developed to modularly assemble a diketopyrrolopyrrole (<bold>DTDPP</bold>)‐based polymer library to screen low‐bandgap and near‐infrared (NIR) absorbing materials. The <bold>DTDPP</bold>‐based copolymers <bold>P1</bold> and <bold>P2</bold> with an alternating donor–acceptor–donor–acceptor (D–A–D–A) sequence and the homopolymer <bold>P9</bold> 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).</p> </abstract>