Issue 6, 2012

A new polyfluorene bearing pyridine moieties: a sensitive fluorescent chemosensor for metal ions and cyanide

Abstract

To develop sensitive and selective CN chemosensors, a new polyfluorene (P2) bearing pyridine moieties was designed and obtained conveniently, the fluorescence of which could be completely quenched by Cu2+ ions at the concentration as low as 5.67 × 10−7 mol L−1 in diluted solutions. By utilizing the much higher stability constant of the complex of CN and Cu2+, the quenched fluorescence of the solution of P2 by Cu2+ ions could recover upon the addition of trace CN anions, with the detection limit as low as 3.3 × 10−7 mol L−1, making P2 a novel, sensitive and selective cyanide probe.

Graphical abstract: A new polyfluorene bearing pyridine moieties: a sensitive fluorescent chemosensor for metal ions and cyanide

Supplementary files

Article information

Article type
Paper
Submitted
18 Jan 2012
Accepted
19 Mar 2012
First published
03 Apr 2012

Polym. Chem., 2012,3, 1446-1452

A new polyfluorene bearing pyridine moieties: a sensitive fluorescent chemosensor for metal ions and cyanide

X. Lou, Y. Zhang, S. Li, D. Ou, Z. Wan, J. Qin and Z. Li, Polym. Chem., 2012, 3, 1446 DOI: 10.1039/C2PY20022H

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