A highly selective novel multiple amide based Schiff base optical chemosensor for rapid detection of Cu2+ and its applications in real sample analysis, molecular logic gate and smart phone

被引：39

作者：

Manna, Amit Kumar ^{[1
]}

Sahu, Meman ^{[1
]}

Rout, Kalyani ^{[1
]}

Das, Uttam K. ^{[2
]}

Patra, Goutam K. ^{[1
]}

机构：

[1] Guru GhasidasVishwavidyalaya, Dept Chem, Bilaspur, CG, India

[2] Mahatma Gandhi Cent Univ, Dept Chem, Motihari, India

来源：

MICROCHEMICAL JOURNAL | 2020年 / 157卷

关键词：

Amide; Schiff base; Colorimetric sensor; Cu2+ sensor; Logic gate; Smart-phone; COLORIMETRIC CHEMOSENSOR; FLUORESCENT SENSORS; COPPER; DISEASE; PROBE; ION; RECOGNITION; GLUTATHIONE; CYSTEINE; MERCURY;

D O I：

10.1016/j.microc.2020.104860

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel multiple amide based Schiff base chemosensor L has been designed rationally for selective colorimetric detection of Cu2+ ion in CH3OH-H2O (1:1 v/v, triS HCl buffer 10 mu M, pH = 7.2) solution. The colour change (colourless to yellow) is so prominent to be visible in bare eye. From the absorption titration, job's plot measurement and ESI-MS revealed that receptor-analyte binding occurs in a 2:1 fashion and the binding sites were confirmed by the X-ray single crystal structure of host-guest complex. Solvent dependent crystal structure from a homoleptic monomer to 2D polymer was observed. The detection limit was found to be 1.8 mu M with the association constant value 1.3 x 10(2) M-1/2 which is highly desirable for 2:1 complexes. The chemosensor L has been applied for construction of binary logical device, recovery of contaminated water samples and smart-phone based analysis.

引用

页数：9

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