An off-on Fluorescent Sensor for Detecting a Wide Range of Water Content in Organic Solvents

Bulletin of the Korean chemical society

Hyung Jin Kim¹  Wan-Jin Lee¹  Jae Nyoung Kim¹  Kang-Hyeon Kim¹ 

关键词: 1;    8-Naphthalimide;    Water sensor;    Fluorescent sensor;    Photoinduced electron transfer;    PET;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

This paper describes the synthesis and water sensing properties of a fluorescent photoinduced electron transfer (PET) sensor (5) with an extended operating sensing range. The 1,8-naphthalimide derivative (5) attached with a piperazine group and a carboxylic group was synthesized and applied as a fluorescent water sensor in watermiscible organic solvents. The fluorescence intensity of the dye 5 increased with increasing water content up to 80% (v/v) and the fluorescence intensities were enhanced 45-, 67- and 122-fold in aqueous EtOH, DMF and DMSO solutions, respectively. In aqueous acetone solution, the enhancement of the fluorescence intensities was somewhat lower (30-fold) but the response range was wider (0-90%, v/v).

【 授权许可】

Unknown