Complex-formation-enhanced fluorescence quenching effect for efficient detection of picric acid

Aixiang Ding; Longmei Yang; Yuyang Zhang; Gaobin Zhang; Lin Kong; Xuanjun Zhang; Yupeng Tian; Xutang Tao; Jiaxiang Yang

doi:10.1002/chem.201402790

Complex-formation-enhanced fluorescence quenching effect for efficient detection of picric acid

Chemistry. 2014 Sep 15;20(38):12215-22. doi: 10.1002/chem.201402790. Epub 2014 Jul 31.

Authors

Aixiang Ding¹, Longmei Yang, Yuyang Zhang, Gaobin Zhang, Lin Kong, Xuanjun Zhang, Yupeng Tian, Xutang Tao, Jiaxiang Yang

Affiliation

¹ Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei 230039 (P.R. China), Fax: (+86) 551-63861279.

PMID: 25081497
DOI: 10.1002/chem.201402790

Abstract

Amine-functionalized α-cyanostilbene derivatives (Z)-2-(4-aminophenyl)-3-(4-butoxyphenyl)acrylonitrile (ABA) and (Z)-3-(4-butoxyphenyl)-2-[4-(butylamino)phenyl]acrylonitrile (BBA) were designed for specific recognition of picric acid (PA), an environmental and biological pollutant. The 1:1 host-guest complexes formed between the chemosensors and PA enhanced fluorescence quenching, thus leading to sensitive and selective detection in aqueous media and the solid phase.

Keywords: amines; fluorescence; host-guest systems; ion pairs; sensors.