Synthesis and Photophysical Properties of Push-Pull Structures Incorporating Diazines as Attracting Part with a Fluorene Core
作者:Charline Denneval、Oana Moldovan、Christine Baudequin、Sylvain Achelle、Patrice Baldeck、Nelly Plé、Mircea Darabantu、Yvan Ramondenc
DOI:10.1002/ejoc.201300458
日期:2013.9
We report, herein, the synthesis of new push–pull chromophores that incorporate a diazine ring as the electron-withdrawing part and an N,N-dimethylaniline moiety as the electron-donating part. Both of which are connected to a fluorene core. The length of the conjugated backbone was increased by incorporating ethynyl linkers and triazole rings on the both sides of the fluorene. The optical and two-photon
我们在此报告了新推挽发色团的合成,该发色团包含一个二嗪环作为吸电子部分和一个 N,N-二甲基苯胺部分作为给电子部分。两者都连接到芴核。通过在芴的两侧加入乙炔基接头和三唑环,增加了共轭骨架的长度。研究了光学和双光子吸收 (TPA) 特性,表现出高量子产率(高达 70%)、显着的斯托克斯位移和良好的 TPA 横截面。