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Coumarin Based Highly Selective "off-on-off" Type Novel Fluorescent Sensor for Cu2+ and S2- in Aqueous Solution
被引:35
|作者:
Karuk Elmas, Aukriye Nihan
[1
]
Ozen, Furkan
[2
]
Koran, Kenan
[2
]
Yilmaz, Ibrahim
[1
]
Gorgulu, Ahmet Orhan
[2
]
Erdemir, Serkan
[3
]
机构:
[1] Karamanoglu Mehmetbey Univ, Kamil Ozdag Sci Fac, TR-70100 Karaman, Turkey
[2] Firat Univ, Fac Sci, TR-23119 Elazig, Turkey
[3] Selcuk Univ, Fac Sci, TR-42075 Konya, Turkey
关键词:
Coumarin;
Fluorescent;
Sensor;
Copper;
Sulfide;
ELECTROCHEMICAL SENSOR;
SULFIDE ANION;
LIVING CELLS;
COPPER-ION;
CHEMOSENSOR;
CHEMODOSIMETER;
CONJUGATE;
MOIETIES;
MEDIA;
PROBE;
D O I:
10.1007/s10895-016-1972-3
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
摘要:
Solvent free synthesis of 6,7-dihydroxy-3-(3-chlorophenyl) coumarin (CFHC) was designed and obtained by the interaction of 2-(2,4,5-trimethoxyphenyl)-1-(3-chlorophenyl)acrylonitrile with pyridinium hydrochloride in the presence of silica gel by using microwave irradiation. The characterization of CFHC was confirmed by FT-IR, H-1, C-13, C-13-APT and 2D HETCOR spectroscopy methods. The optical behavior of CFHC towards metal ions was investigated by UV-visible and fluorescence spectroscopy. CFHC showed "on-off" type fluorescence response towards Cu2+ with high selectivity in aqueous solution (CH3CN/H2O, 9/1, v/v). Once binding with Cu2+, CFHC-Cu2+ complex also displayed high selectivity for sulfide, resulting in "off-on" type sensing of sulfide anion.
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页码:463 / 471
页数:9
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