Synthesis and ion sensing properties of new colorimetric and fluorimetric chemosensors based on bithienyl-imidazo-anthraquinone chromophores

被引：145
作者：
Batista, Rosa M. F.
Oliveira, Elisabete
Costa, Susana P. G.
Lodeiro, Carlos
Raposo, M. Manuela M.
机构：
[1] Univ Minho, Ctr Quim, P-4710057 Braga, Portugal
[2] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Quim, REQUIMTE, P-2829516 Monte De Caparica, Portugal
来源：
ORGANIC LETTERS | 2007年 / 9卷 / 17期
关键词：
D O I：
10.1021/ol071029b
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Novel colorimetric receptors for fluoride ion sensing containing anthraquinone as a chromogenic signaling unit and imidazo-2,2'-bithiophene binding sites are reported. Well-defined color change was observed upon addition of fluoride ions to acetonitrile solutions of receptors 2. Compounds 2a-c, deprotonated after fluoride ion addition, were studied as metal ion chemosensors in the presence of Zn(II), Hg(II), and Cu(II) in acetonitrile solutions, especially compound 2a which displayed a marked change from pink to yellow-gold colors upon complexation.
引用
收藏
页码：3201 / 3204
页数：4
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