期刊
ORGANIC CHEMISTRY FRONTIERS
卷 6, 期 16, 页码 2974-2980出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9qo00645a
关键词
-
资金
- NSF of China [21702240, 21875291]
A novel 6-5-5-5 ring containing mono-ketopyrrole in its fully conjugated state, resembling a pi-expanded diketopyrrolopyrrole analog, has been designed and synthesized. The new type of molecule shows intense visible range absorption and a reversible reduction potential. Further, this class of molecule can be incorporated into a family of alternative conjugated polymers. These new polymers possess planar backbones due to the fused pi-expanded diketopyrrolopyrrole analog building block and smaller steric effects between the thiophene of azaanthracene and the flanking thiophene rings of the comonomer units. These new very low band gap polymers exhibit NIR absorption spectra that are extended to 1200 nm due to the extended effective conjugation length and increased molecular orbital overlap between aromatic monomer units. Our results demonstrate that these pi-expanded diketopyrrolopyrrole analogs could be a useful building block for semiconducting polymers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据