論文

査読有り
2005年9月

Photochemical and complexation studies for new fluorescent and colored chelator

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
  • A Ohshima
  • ,
  • A Momotake
  • ,
  • T Arai

6
6
開始ページ
633
終了ページ
643
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.stam.2005.05.002
出版者・発行元
IOP PUBLISHING LTD

The photo-induced intramolecular proton (or hydrogen atom) transfer (ESIPT) and metal binding properties of Oxa-ester were studied in methanol solution. The dissociation constant between Oxa-ester and the metal ion was highly dependent with the metal ion and was determined by Hill plots or iterative least squares fitting to be 447 mM, 14.9 mu M, and 290 nM for Ca2+, Zn2+ and Cu2+, respectively, in methanol. The fluorescence intensity of Oxa-ester greatly increased with increasing concentration of Zn2+, while the fluorescence intensity decreased with the addition of Ca2+ and Cu2+. Transient absorption spectroscopy revealed that Oxa-ester underwent ESIPT to give Z-NH isomer in the excited state in benzene, while Oxa did not undergo ESIPT probably due to the hydrogen bonding with solvent water. (c) 2005 Elsevier Ltd. All rights reserved.

Web of Science ® 被引用回数 : 7

リンク情報
DOI
https://doi.org/10.1016/j.stam.2005.05.002
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000234075800012&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.stam.2005.05.002
  • ISSN : 1468-6996
  • eISSN : 1878-5514
  • Web of Science ID : WOS:000234075800012

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