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A fluorescent color/intensity changed chemosensor for Fe3+ by photo-induced electron transfer (PET) inhibition of fluoranthene derivative
來源:于明明教授個人網站 發布日期:2012-02-27
作者:Li, Z. X.; Zhang, L. F.; Li, X. Y.; Guo, Y. K.; Ni, Z. H.; Chen, J. H.; Wei, L. H.; Yu, M. M.*
關鍵字:photo-induced electron transfer,chemosensor
論文來源:期刊
具體來源:Dyes Pigments 2012, 94, 60–65
發表時間:2012年

A fluorescent color/intensity changed fluoranthene derivative chemosensor for Fe3+ has been prepared and confirmed by 1H-NMR, 13C-NMR, HRMS, and crystal data, which displays a high selectivity and antidisturbance for Fe3+ among environmentally and biologically relevant metal ions. Fluorescence studies show that fluorescent emission peak blue shifts about 100 nm with fluorescent intensity enhancing 75-fold, indicating a Fe3+-selective dual-emission behavior. Further study demonstrates the detection limit on fluorescence response of the sensor to Fe3+ is down to 10-7 M range. The fluorescence signals of chemosensor can be restored with o-phenanthroline, showing the binding of chemosensor and Fe3+ is really chemically reversible.

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