Emission response towards three anions (F−, HSO4− and AcO−) by a luminescent europium ternary complex with a 2-arylimidazole–1,10-phenanthroline conjugate

Qianming Wang; Chaoliang Tan; Hitoshi Tamiaki; Hongyu Chen

doi:10.1039/C0PP00071J

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Emission response towards three anions (F⁻, HSO₄⁻ and AcO⁻) by a luminescent europium ternary complex with a 2-arylimidazole–1,10-phenanthroline conjugate†

Qianming Wang,*^a Chaoliang Tan,^a Hitoshi Tamiaki^b and Hongyu Chen^a

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* Corresponding authors

^a School of Chemistry and Environment, South China Normal University, Guangzhou, P. R. China
E-mail: qmwang@scnu.edu.cn
Fax: +86-20-39310187
Tel: +86-20-39310187

^b Department of Bioscience and Biotechnology, Ritsumeikan University, Kusatsu, Shiga, Japan

Abstract

A novel ternary 2-(2-carboxylphenyl)imidazo[4,5-f]-1,10-phenanthroline-based europium(III) 2-thenoyltrifluoroacetonate complex with red luminescence was designed and prepared for anion recognition. Spectroscopic studies, including UV-vis, fluorescence and NMR, showed that the sensor exhibited striking emission changes in response to fluoride (green), hydrogen sulfate (blue) and acetate anions (pale blue) due to hydrogen bonding and competitive coordination with the Eu(III) ions.

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Article information

DOI: https://doi.org/10.1039/C0PP00071J
Article type: Paper
Submitted: 23 Mar 2010
Accepted: 12 Apr 2010
First published: 07 May 2010

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Photochem. Photobiol. Sci., 2010,9, 791-795

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Emission response towards three anions (F⁻, HSO₄⁻ and AcO⁻) by a luminescent europium ternary complex with a 2-arylimidazole–1,10-phenanthroline conjugate

Q. Wang, C. Tan, H. Tamiaki and H. Chen, Photochem. Photobiol. Sci., 2010, 9, 791 DOI: 10.1039/C0PP00071J

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Photochemical & Photobiological Sciences