Selective sensing of H2PO4− (Pi) driven by the assembly of anthryl pyridinium ligands

Weitao Gong; Qinglan Zhang; Furui Wang; Bei Gao; Yuan Lin; Guiling Ning

doi:10.1039/C2OB26135A

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Organic & Biomolecular Chemistry

Issue 37, 2012

The international home of synthetic, physical and biomolecular organic chemistry.

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Selective sensing of H₂PO₄⁻ (Pi) driven by the assembly of anthryl pyridinium ligands

Weitao Gong,*^a Qinglan Zhang,^a Furui Wang,^a Bei Gao,^a Yuan Lin^a and Guiling Ning*^a

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State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
E-mail: wtgong@dlut.edu.cn

Org. Biomol. Chem., 2012,10, 7578-7583

DOI: 10.1039/C2OB26135A
Received 22 Feb 2012, Accepted 27 Jul 2012
First published online 30 Jul 2012

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Abstract
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Synthesis of a simple amidopyridinium-based sensor (F1) and its fluorescence behavior toward H₂PO₄⁻ (Pi) were investigated. The anthryl group in F1 exhibited a strong excimer emission via Pi-directed assembly of F1; other anions showed a negligible effect. The Pi-induced assembly of F1 was rationalized by photophysical experiments and DFT calculation.

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Weitao Gong
Qinglan Zhang
Furui Wang
Bei Gao
Yuan Lin
Guiling Ning

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Selective sensing of H₂PO₄⁻ (Pi) driven by the assembly of anthryl pyridinium ligands