A new polyfluorene bearing pyridine moieties: a sensitive fluorescent chemosensor for metal ions and cyanide?
Polymer Chemistry Pub Date: 2012-04-03 DOI: 10.1039/C2PY20022H
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.
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Journal Name：Polymer Chemistry
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CAS no.: 89640-58-4
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