Journal of Materials Chemistry p. 14041 - 14047 (2011)
Update date:2022-07-29
Topics:
Pawle, Robert H.
Eastman, Victoria
Thomas, Samuel W.
This article describes photoactivatable conjugated oligomers that show both increased fluorescence quantum yield and pH-dependant solubility upon irradiation with UV light. Sonogashira coupling between ester-substituted phenylacetylenes and alkoxy-substituted diiodo phenylene-vinylenes yielded conjugated phenylene-ethynylene/phenylene-vinylene oligomers. Oligomers with nitrobenzyl ester moieties had quenched fluorescence in polar solvents; UV irradiation restored their quantum yield of fluorescence to that of corresponding alkyl ester-substituted oligomers. These photocaged oligomers also exhibited UV-induced changes in solubility consistent with photogeneration of carboxylic acids. This approach is therefore effective at tuning the properties of conjugated organics with light after traditional synthetic operations, and has potential for use in photoactivatable fluorophores or solution-processable multilayer devices.
View MoreHefei EnliPharma Tecnology Co.,Ltd
Contact:0086-551-66399836
Address:Qing Cheng ShuiXiang Building 805, Mengcheng North Road , ShuangFeng Economic Development Zone Anhui HeFei
Shanghai PotentPharm Science and Technology Co.,Ltd
Contact:86-021-51969655
Address:Unit B, Building 18, No.300, Chuantu Rd,Pudong District, Shanghai 201202, China
Changzhou Qidi Chemical Co., Ltd
website:http://www.czqdhg.com/
Contact:86-519-83382137
Address:128-1-16# HuaYuan Street,Hutang Town,Wujin District,Changzhou City,P.R.China.
Suzhou HeChuang Chemical Co.,Ltd.
Contact:+86-512-88800520
Address:No.9 Guanchao Rd,Changshu Advanced Materials Industy Park
Shanghai PuYi Chem-Tech Co.,Ltd.
Contact:+86-21-57687505-227
Address:3 Floor, Building 11, No 201 MinYi Road, Songjiang District, Shanghai 201612, China
Doi:10.1039/c1dt10886g
(2011)Doi:10.1039/c1jm12071a
(2011)Doi:10.1002/anie.201308794
(2014)Doi:10.1021/ol202090a
(2011)Doi:10.1002/anie.201103007
(2011)Doi:10.1002/anie.201103261
(2011)