論文

2019年10月

Development of an intramolecular charge transfer-type colorimetric and fluorescence sensor for water by fusion with a juloidine structure and complexation with boron trifluoride

RSC ADVANCES
  • Keiichi Imato
  • ,
  • Toshiaki Enoki
  • ,
  • Yousuke Ooyama

9
54
開始ページ
31466
終了ページ
31473
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1039/c9ra07136a
出版者・発行元
ROYAL SOC CHEMISTRY

An optical sensor with the ability to detect and determine water over a wide concentration range is highly desirable in the laboratory and industry. Here the sensitivity and spectral responses of an intramolecular charge transfer-type colorimetric and fluorescence sensor with beta-carboline structure are tuned and improved significantly over various water contents in the organic solvent by fusion with an electron-donating juloidine structure and complexation with boron trifluoride (BF3). The sensors, ET-1 and ET-1-BF3, developed in this study can respond differently depending on water content. ET-1-BF3 releases BF3 to generate ET-1 by addition of a trace amount of water, and ET-1 forms hydrogen bonds with one water molecule in low water contents and a hydrogen-bonded proton transfer complex with several water molecules in high water contents, accompanying gradual color and fluorescence changes. This work shows a promising approach to the sensitive detection and precise determination of water over the whole concentration range using a simple and practical method with optical sensors.

リンク情報
DOI
https://doi.org/10.1039/c9ra07136a
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000490283500031&DestApp=WOS_CPL
ID情報
  • DOI : 10.1039/c9ra07136a
  • eISSN : 2046-2069
  • Web of Science ID : WOS:000490283500031

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