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NCUEIR > College of Science > Department of Chemistry > Periodical Articles > Item 987654321/10106

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10106

Title:	A Sugar-aza-crown Ether-based Fluorescent Sensor for Cu2+ and Hg2+ Ions
Authors:	Hsieh, Yu-Chi;Chir, Jiun-Ly;Yang, Shih-Tse;Chen, Shau-Jiun;Hu, Ching-Han;Wu, An-Tai
Contributors:	化學系
Keywords:	Fluorescent sensor;Chemosensor;Pyrene
Date:	2011-05
Issue Date:	2012-05-03T06:18:32Z
Publisher:	Elsevier
Abstract:	A sugar-aza-crown ether (SAC)-based fluorescent sensor 4 was prepared. It contains a pyrene as the fluorophore and its fluoroionophoric properties toward transition metal ions were investigated. Chemosensor 4 exhibits highly selective recognition toward Cu2+ and Hg2+ ions among a series of tested metal ions in methanol solution. The association constants for 4Cu2+ and 4Hg2+ in methanol solution were calculated to be 7.4 × 101 M−1 and 4.4 × 103 M−1, respectively. Chemosensor 4 formed complexes with the Cu2+ or Hg2+ ion at a 1:1 ligand-to-metal ratio with a detection limit of 1.3 × 10−4 M Cu2+ and 1.26 × 10−5 M Hg2+, respectively.
Relation:	Carbohydrate Res., 346(7): 978-981
Appears in Collections:	[Department of Chemistry] Periodical Articles

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