中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
二甲基-(2-苯基乙炔-苯基)-酰胺 | N,N-dimethyl-2-(2-phenylethynyl)aniline | 54655-08-2 | C16H15N | 221.302 |
—— | N,N-dimethyl-2-(p-tolylethynyl)aniline | 54655-09-3 | C17H17N | 235.329 |
—— | N,N-dimethyl-2-((2-(phenylethynyl)phenyl)ethynyl)aniline | 1258410-52-4 | C24H19N | 321.422 |
—— | 2-((4-methoxyphenyl)ethynyl)-N,N-dimethylaniline | 62167-04-8 | C17H17NO | 251.328 |
—— | N,N-dimethyl-2-(naphthalen-1-ylethynyl)aniline | 1401560-14-2 | C20H17N | 271.362 |
A series of dimethylamino-substituted arylene-ethynylenes were synthesised by Sonogashira coupling reactions and characterised by the methods of 1H, 13C NMR, UV-Vis, fluorescence, HRMS and theoretical calculations. Effects on spectroscopic properties caused by the different positions of the dimethylamino group in arylene-ethynylenes were studied and discussed. The shortest absorption maximum, the largest Stokes shift and the highest fluorescence efficiency were observed for arylene-ethynylenes with a dimethylamino group present in the ortho-position.