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A New Fluorescent Sensor for Fe 3+ Based on Glycoluril Molecular Clip
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Abstract
The application of fluorescent method to metal ions detection features high sensitivity, simple operation and real‐time monitoring. A 2,7‐dihydroxynaphthalene‐functionalized dimethyl glycoluril (called clip
1
) was synthesized, using a relatively simple method. And it is fully characterized by
1
H NMR,
13
C NMR, HR‐MS and single crystal X‐ray diffraction. The recognition properties of molecular clip
1
were analyzed systematically toward several metal ions using fluorescence spectroscopy, and it was found that molecular clip
1
is selective and sensitive to Fe
3+
. At the same time, the clip
1
shows good anti‐interference ability when other metal ions existed. The limit detection of Fe
3+
is 3×10
−7
M. The fluorescence of clip
1
was quenched apparently by Fe
3+
, which was speculated to be caused by ligand–metal charge transfer mechanism (LMCT). As a new fluorescence probe for Fe
3+
ion, it may expanded the application of glycoluril molecular clips.
Title: A New Fluorescent Sensor for Fe
3+
Based on Glycoluril Molecular Clip
Description:
Abstract
The application of fluorescent method to metal ions detection features high sensitivity, simple operation and real‐time monitoring.
A 2,7‐dihydroxynaphthalene‐functionalized dimethyl glycoluril (called clip
1
) was synthesized, using a relatively simple method.
And it is fully characterized by
1
H NMR,
13
C NMR, HR‐MS and single crystal X‐ray diffraction.
The recognition properties of molecular clip
1
were analyzed systematically toward several metal ions using fluorescence spectroscopy, and it was found that molecular clip
1
is selective and sensitive to Fe
3+
.
At the same time, the clip
1
shows good anti‐interference ability when other metal ions existed.
The limit detection of Fe
3+
is 3×10
−7
M.
The fluorescence of clip
1
was quenched apparently by Fe
3+
, which was speculated to be caused by ligand–metal charge transfer mechanism (LMCT).
As a new fluorescence probe for Fe
3+
ion, it may expanded the application of glycoluril molecular clips.
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