激进的
化学
支柱
位阻效应
光化学
发光
立体化学
有机化学
光电子学
结构工程
物理
工程类
作者
Jinfa Chen,Guoqing Tian,Kanglei Liu,Niu Zhang,Nan Wang,Xiaodong Yin,Pangkuan Chen
出处
期刊:Organic Letters
[American Chemical Society]
日期:2022-03-04
卷期号:24 (10): 1935-1940
被引量:31
标识
DOI:10.1021/acs.orglett.2c00313
摘要
Stable organic radicals with unique luminescence show great importance in photoelectromagnetic materials. We herein report two unusual radical-based systems (P5N-TTM and P5B-TTM) using the concerted effects of planar chiral pillar[5]arenes and tris(2,4,6-trichlorophenyl)methyl (TTM) radicals. The steric effect and electronic doublet-spin character of these radicals allowed the optical resolution and the first red emissions (∼650 nm) for pillar[5]arene derivatives. Notably, cross-coupling with macrocyclic pillar[5]arene, in turn, considerably enhanced the configurational stability of TTM radicals.
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