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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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Title: 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
Authors: Morozumi, T.1 Browse this author →KAKEN DB
Hama, H. Browse this author
Nakamura, H. Browse this author →KAKEN DB
Authors(alt): 諸角, 達也1
Keywords: CHARGE-TRANSFER STATES
COMPLEXATION
COMPLEXING BEHAVIOR
CALCIUM
AROMATIC AMIDES
BARIUM IONS
CHEMOSENSORS
Issue Date: May-2006
Publisher: The Japan Society for Analytical Chemistry
Journal Title: Analytical Sciences
Volume: 22
Issue: 5
Start Page: 659
End Page: 661
Abstract: 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.
Type: article
URI: http://hdl.handle.net/2115/14416
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 諸角 達也

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