One‐Pot Synthesis of 3‐ to 15‐Mer π‐Conjugated Discrete Oligomers with Widely Tunable Optical Properties,Chinese Journal of Chemistry

当前位置： X-MOL 学术 › Chin. J. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

One‐Pot Synthesis of 3‐ to 15‐Mer π‐Conjugated Discrete Oligomers with Widely Tunable Optical Properties
Chinese Journal of Chemistry ( IF 5.5 ) Pub Date : 2020-10-12 , DOI: 10.1002/cjoc.202000457
Hui Liu ₁ , Xiao‐Feng Zhang ₁ , Li‐Hong Wang ₁ , Yan Chen ₁ , Dong‐Nai Ye ₁ , Long Chen ₁ , He‐Rui Wen ₁ , Shi‐Yong Liu ₁

Affiliation

A series of all‐donor type alternating (D1‐D2) monodisperse oligomers based on cyclopentadithiophene (CPDT) and 1,4‐difluorobenzene (DFB) with gradually increasing chain lengths containing 3 to 15 monomers were successfully synthesized via one‐pot C—H direct arylation reaction. As confirmed by various structural characterizations, all these long‐chain oligomers are monodispersed with defined structures. The length‐dependent optical and electrochemical properties with the evolution from the shortest oligomer (O1) to the longest oligomer (O7) and their parent polymer P1 have been studied in details. By simply tuning the mixing ratio of discrete oligomers, the photoluminescence (PL) in a wide range of color emissions extending to near‐white can be facilely modulated, illustrating the potential of these monodisperse conjugated oligomers for light emission application. The atom‐, step‐ and pot‐economic synthetic strategy here developed will open the door toward efficient and controllable synthesis of π‐conjugated oligomers for accurate structure‐property relationship study and optic & electronic device applications.

中文翻译：

具有广可调光学特性的3到15 Merπ共轭离散低聚物的一锅合成

通过环戊二噻吩（CPDT）和1,4-二氟苯（DFB）的一系列全供体交替（D1-D2）单分散低聚物已成功合成，其链长逐渐增加，包含3至15个单体一锅CH直接芳基化反应。正如各种结构特征所证实的那样，所有这些长链低聚物均单分散并具有确定的结构。从最小的低聚物（O1）到最长的低聚物（O7）以及它们的母体聚合物P1的演化，研究了与长度有关的光学和电化学性质。通过简单地调整离散低聚物的混合比例，可以轻松调节范围广泛的颜色发射到近白色的光致发光（PL），从而说明这些单分散共轭低聚物在发光应用中的潜力。原子-

更新日期：2020-10-12

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11