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

Rosa M. F. Batista; Elisabete Oliveira; Susana P. G. Costa; Carlos Lodeiro; M. Manuela M. Raposo

doi:10.1021/ol071029b

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

Rosa M. F. Batista, Elisabete Oliveira, Susana P. G. Costa, Carlos Lodeiro, M. Manuela M. Raposo

Research output: Contribution to journal › Article

130 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	3201-3204
Number of pages	4
Journal	Organic Letters
Volume	9
Issue number	17
DOIs	https://doi.org/10.1021/ol071029b
Publication status	Published - 16 Aug 2007

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

abstract = "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.",

author = "Batista, {Rosa M. F.} and Elisabete Oliveira and Costa, {Susana P. G.} and Carlos Lodeiro and Raposo, {M. Manuela M.}",

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AU - Batista, Rosa M. F.

AU - Oliveira, Elisabete

AU - Costa, Susana P. G.

AU - Lodeiro, Carlos

AU - Raposo, M. Manuela M.

PY - 2007/8/16

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N2 - 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.

AB - 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.

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