A colorimetric chemosensor for fast detection of thiols based on intramolecular charge transfer

A colorimetric chemosensor for fast detection of thiols based on intramolecular charge transfer

A TCNQ-based triphenylamine derivative ( 1) with strong intramolecular charge transfer (ICT) character was designed as a colorimetric sensor for thiols. Upon addition of thiols, the absorption spectrum of sensor 1 in aqueous solution was remarkably changed because the adduct of 1 with thiol decrease...

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Veröffentlicht in:Tetrahedron letters 2011-10, Vol.52 (40), p.5136-5139
Hauptverfasser: Tang, Xianglin, Liu, Weimin, Wu, Jiasheng, Zhao, Wenwen, Zhang, Hongyan, Wang, Pengfei
Format: Artikel
Sprache:eng
Schlagworte:
Analytical chemistry
Charge transfer
Chemistry
Chemoreceptors
Colorimetric sensor
Colorimetry
Derivatives
Exact sciences and technology
Eyes
General, instrumentation
Intramolecular charge transfer
Noncondensed benzenic compounds
Organic chemistry
Preparations and properties
Sensors
TCNQ
Tetrahedrons
Thiol
Thiols
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Beschreibung
Zusammenfassung:A TCNQ-based triphenylamine derivative ( 1) with strong intramolecular charge transfer (ICT) character was designed as a colorimetric sensor for thiols. Upon addition of thiols, the absorption spectrum of sensor 1 in aqueous solution was remarkably changed because the adduct of 1 with thiol decreased its ICT character. Sensor 1 showed highly selective and sensitive sensing ability toward thiols over other analytes. This selectivity could be easily observed by naked eyes, indicating that sensor 1 is a potential colorimetric sensor for thiols.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2011.07.111