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The "Off-On" fluorescence detection of alkaline earth metal ions by using 1-naphthylacetanilide derivatives : New cation sensors based on oligoethylene oxides connecting 1-naphthylacetanilide at its terminals

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タイトル: The "Off-On" fluorescence detection of alkaline earth metal ions by using 1-naphthylacetanilide derivatives : New cation sensors based on oligoethylene oxides connecting 1-naphthylacetanilide at its terminals
著者: Morozumi, T 著作を一覧する
Hama, H 著作を一覧する
Nakamura, H 著作を一覧する
キーワード: CHARGE-TRANSFER STATES
COMPLEXATION
COMPLEXING BEHAVIOR
CALCIUM
AROMATIC AMIDES
BARIUM IONS
CHEMOSENSORS
発行日: 2006年 5月
出版者: The Japan Society for Analytical Chemistry
誌名: Analytical Sciences
巻: 22
号: 5
開始ページ: 659
終了ページ: 661
抄録: New fluorescent ionophores containing the 1-naphthylacetanilide moiety based on oligo-ethylene oxide (1(4) and 1(5)) have been synthesized, and their photochemical behaviors have been studied. In the absence of a metal ion, the 1-naphthylacetanilide moiety showed a weak fluorescence emission (fluorescence "off state"). However, complexation with Ca2+ induced a large enhancement effect on the fluorescence intensity of 1(4) and 1(5) from the naphthalene ring (fluorescence "on" state). This behavior can be explained in terms of a similar twisted intramolecular charge-transfer relaxation mechanism. Such "off-on" fluorescence responses of 1(4) and 1(5) provide the digital detection of alkaline earth metal ions.
資料タイプ: article
URI: http://hdl.handle.net/2115/14416
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 諸角 達也

 

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