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Fluorescent Detection of Trace Water in Methanol Based on an Al(III) Chemical Sensor
Author(s) -
Hao Liang,
Qiu Qiming,
Wang Wenjie,
Gu Leilei,
Li Hui
Publication year - 2016
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.201600358
Subject(s) - chemistry , fluorescence , intramolecular force , methanol , photochemistry , schiff base , excited state , aluminium , naked eye , detection limit , chromatography , organic chemistry , polymer chemistry , physics , nuclear physics , quantum mechanics
A colorimetric and fluorescent sensor for trace water in methanol has been designed and characterized, which is a kind of aluminium‐Schiff base coordination complex derived from diaminomaleonitrile. The fluorescence properties of this complex have been studied based on excited state intramolecular proton transfer (ESIPT) and intramolecular charge transfer (ICT) mechanism. The fluorescent emission of Al‐L complex can be quenched by 0.1% water and distinguished by naked eyes. The detection limitation is 0.01% recognized by fluorescence spectra.