Salicylimine-based fluorescent chemosensor for magnesium ions in aqueous solution

被引：24

作者：

Azadbakht, Reza ^{[1
]}

Koolivand, Mostafa ^{[2
]}

Menati, Saeid ^{[3
]}

机构：

[1] Bu Ali Sina Univ, Fac Chem, Hamadan 65174, Hamadan, Iran

[2] Payame Noor Univ, Dept Chem, Tehran, Iran

[3] Islamic Azad Univ, Dept Chem, Khorramabad Branch, Khorramabad, Iran

来源：

INORGANICA CHIMICA ACTA | 2021年 / 514卷

关键词：

Magnesium; Salicylimine-based receptor; C=N isomerization; Chemosensor; SCHIFF-BASE; MG2+ IONS; C=N ISOMERIZATION; PROBE; ZN2+; RECOGNITION; DERIVATIVES; REMOVAL; SAMPLES; SENSORS;

D O I：

10.1016/j.ica.2020.120021

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new fluorescent schiff base chemosensor (H2L) was prepared for the sensitive and selective sensing of Mg2+ ions based on multiple mechanisms. H2L is a weak fluorescent (f = 0.031) due to PET process and C=N isomerization. Upon addition of Mg2+, the complex [MgL] was formed and a remarkable fluorescence enhancement (f = 0.182) was produced. H2L had no such significant effect on the fluorescence in the presence of metal ions, such as Na+, Ag+, K+, Ca2+, Mg2+, Hg2+, Mn2+, Co2+, Ni-2(+), Cu2+, Zn2+, Cd2+, Pb2+, Cr-3(+), Fe3+, and In3+. The satisfactory linear relationship was observed between the added concentrations of Mg2+ and the fluorescence intensity of H2L. The detection limit was 3.04 x 10(-9) M with a rapid response time. Chemical inputs of Mg2+ and Fe3+ ions satisfy the conditions of INHIBIT molecular logic gate.

引用

页数：8

共 53 条

[1] Removal of basic dye Auramine-O by ZnS:Cu nanoparticles loaded on activated carbon: optimization of parameters using response surface methodology with central composite design [J].