A COLORIMETRIC AND FLUORESCENT CHEMOSENSOR OF FE3+ BASED ON AN ASYMMETRICAL SQUARYLIUM DYE

被引：1

作者：

Lu, Min ^{[1
]}

Wang, Yue ^{[1
]}

Li, Ying ^{[1
]}

Li, Zhongyu ^{[1
,2
]}

Xu, Song ^{[1
]}

Yao, Chao ^{[1
]}

机构：

[1] Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Sch Petrochem Engn, Changzhou 213164, Peoples R China

[2] Changzhou Univ, Jiangsu Adv Catalysis & Green Mfg Collaborat Inno, Changzhou 213164, Peoples R China

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2018年 / 85卷 / 02期

关键词：

squarylium dye; iron ion (III); colorimetric sensor; fluorescent sensor; III-AMPLIFIED FLUORESCENCE; SENSOR; CU2+;

D O I：

10.1007/s10812-018-0654-0

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A novel asymmetrical squarylium-dye-based dual signaling probe was synthesized and found to exhibit colorimetric and fluorescent properties on selective binding towards Fe3+ in ethanol/water (4:1, v/v) solution. The binding constant was determined to be 7.69 x 10(2) M-1, and the detection limit of SQ was 9.158 x 10(-6) M. Most importantly, the 1:2 stoichiometry of the host-guest complexation was confirmed by Job's method. Moreover, the high sensing ability of the receptor towards Fe3+ was also investigated by the electrochemical technique.

引用

页码：341 / 348

页数：8

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