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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 8
BKCSDE 34(8)
August 20, 2013

Title	An off-on Fluorescent Sensor for Detecting a Wide Range of Water Content in Organic Solvents
Author	Kang-Hyeon Kim, Wan-Jin Lee, Jae Nyoung Kim, Hyung Jin Kim*
Keywords	1,8-Naphthalimide, Water sensor, Fluorescent sensor, Photoinduced electron transfer, PET
Abstract	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).
Page	2261 - 2266
Full Text	PDF

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