Naphthalimide as Highly Selective Fluorescent Sensor for Ag +  Ions | Zendy

Xu Sheng | Zendy; Li Wei | Zendy; Chen KongChang | Zendy

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Naphthalimide as Highly Selective Fluorescent Sensor for Ag + Ions

Author(s) -

Xu Sheng,

Li Wei,

Chen KongChang

Publication year - 2007

Publication title -

chinese journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.28

H-Index - 41

eISSN - 1614-7065

pISSN - 1001-604X

DOI - 10.1002/cjoc.200790143

Subject(s) - chemistry , fluorophore , fluorescence , chromogenic , amine gas treating , photochemistry , ion , photoinduced electron transfer , metal ions in aqueous solution , derivative (finance) , tertiary amine , inorganic chemistry , electron transfer , organic chemistry , physics , chromatography , quantum mechanics , financial economics , economics

The naphthalimide derivative NA1 was synthesized, which consists of a bis(2‐(ethylthio)ethyl)amine group binding cations and naphthalimide unit as chromogenic and fluorogenic signaling subunit. Absorption and emission spectra and the effect of polarity of solvents and pH values were studied. The photo‐induced electron transfer (PET) occurred from the donor of bis(2‐(ethylthio)ethyl)amine group to the naphthalimide fluorophore. The present study demonstrates that NA1 is a viable candidate as a fluorescent receptor for a new Ag + ion sensor. This silver ion chemosensor can discriminate Ag + ion well among heavy metal ions by an enhancement of the fluorescence intensity in ethanol‐water (1:9, V : V ). And NA1 is also a pH‐sensor because the fluorescence of the compound varies with the pH values.

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