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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 1
BKCSDE 30(1)
January 20, 2009 

A Simple Phenol-Indole Dye as a Chromogenic Probe for the Ratiometric Determination of Water Content in Organic Solvents
Kyoung Nam Kim, Ki Cheol Song, Jae Hyun Noh, Suk Kyu Chang*
Chromogenic dye, Water content, Organic solvent, Solvatochromism, Ratiometry
A simple dye having phenol and indole moieties was synthesized and its chromogenic signaling behaviors for the determination of water content in organic solvents were investigated. The compound revealed a pronounced chromogenic behavior in response to the variation of water content in water miscible aprotic organic solvents of acetone, acetonitrile, THF, and dioxane. Significant red shifts and changes in absorption spectra allowed a ratiometric analysis of the signaling behavior. The chemosensing behaviors were particularly pronounced in water content in less than 10% that is suitable for the application of the compound as a probe for the determination of water content in binary aqueous organic solutions having lower water content.
197 - 200
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