Title of article :
Novel fluorescent chemosensors based on carbazole for Cu2+ and Fe3+ in aqueous media
Author/Authors :
Pengfei Cheng، نويسنده , , Kuo-xi Xu، نويسنده , , Wenyong Yao، نويسنده , , En Xie، نويسنده , , Jie Liu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
4
From page :
583
To page :
586
Abstract :
We have developed carbazole-based fluorescent chemosensors that exhibit fluorescence quenching upon binding Cu2+ and Fe3+ in the Tris–HCl (0.01 M DMSO/H2O (v/v) 1:1, buffer, pH=7.4) solution system by fluorescence titration experiments at 25 °C. These sensors form a 1:1 complex with Cu2+ or Fe3+ and show a fluorescent quenching based on photoinduced electron transfer (PET) with a binding constant of (3.44±0.05)×103 and (1.50±0.06)×104, respectively. All the chemosensors (1–4) show the highest sensitivity for Cu2+ and Fe3+ over other metal cations in aqueous solution.
Keywords :
Cu2+ , Fe3+ , Chemosensor , Fluorescent , PET
Journal title :
Journal of Luminescence
Serial Year :
2013
Journal title :
Journal of Luminescence
Record number :
1263048
Link To Document :
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