摘要
具有聚集诱导发射(AIE)和分子内电荷转移(ICT)特性的荧光发色团因其可调的发射特性和强的荧光发射强度而备受青睐。为了获得同时具有ICT和AIE特性的化合物,以四苯乙烯衍生物(1)为原料,经硝化反应得到化合物3,再经还原反应得到化合物4,化合物4与4-吡啶硼酸通过经典Suzuki偶联反应得到化合物5,经荧光光谱测试测得化合物5同时具有ICT和AIE特性。随着体系中含水量的增加,荧光发射红移,化合物5发射颜色从蓝绿色变为橙黄色,并且当体系中水的体积分数为70%时可实现单分子白光发射。
The fluorescent chromophores with aggregation-induced emission(AIE)and intramolecular charge transfer(ICT)properties are favored for their tunable emission properties and high fluorescence emission intensity.In order to obtain a compound with ICT and AIE properties,tetrafluoroethylene derivatives(1)was used as a raw material,and compound 3 was obtained by nitration reaction,and then the compound 4 was obtained by reduction reaction,and compound 4 and 4-pyridinylboronic acid gave compound 5 by classical Suzuki coupling reaction.The fluorescence spectroscopy experimental results showed that compound 5 has both ICT and AIE effects and the fluorescence emission was red-shifted with the increase of water content in the system,and its emission color changed from blue-green to orange-yellow.The single molecule white light emission could be obtained when the volume fraction of water is 70%.
作者
江背
刘森坤
杨祥
杨洁
马珂
袁小娟
张灯青
JIANG Bei;LIU Senkun;YANG Xiang;YANG Jie;MA Ke;YUAN Xiaojuan;ZHANG Dengqing(College of Chemistry and Chemical Engineering,Donghua University,Shanghai 201620,China)
出处
《合成化学》
2025年第8期570-576,共7页
Chinese Journal of Synthetic Chemistry
基金
上海市自然基金资助项目(22ZR1402900)。
关键词
聚集诱导发射
分子内电荷转移
荧光可调
四苯乙烯
单分子白光
aggregation-induced emission
intramolecular charge transfer
fluorescence tunable
tetraphenylene
single molecule white light
