A new colorimetric chemodosimeter for Hg2+ based on charge-transfer compound of N-methylpyrrole with TCNQ

被引：23

作者：

Kaur, Paramjit ^{[1
]}

Kaur, Sandeep ^{[1
,2
]}

Kasetti, Yoganjaneyulu ^{[3
]}

Bharatam, Prasad. V. ^{[3
]}

Singh, Kamaljit ^{[2
]}

机构：

[1] Guru Nanak Dev Univ, Dept Chem, Amritsar, Punjab, India

[2] Guru Nanak Dev Univ, Organ Synth Lab, Dept Appl Chem Sci & Technol, Amritsar, Punjab, India

[3] NIPER, Dept Med Chem, Sas Nagar, India

来源：

TALANTA | 2010年 / 83卷 / 02期

关键词：

Charge-transfer; TCNQ; Colorimetric; Chemodosimeter; Mercury; SP(3) C-H; SEMIEMPIRICAL METHODS; BOND ACTIVATION; SENSOR; MERCURY; METAL; OPTIMIZATION; CHEMOSENSOR; DERIVATIVES; PARAMETERS;

D O I：

10.1016/j.talanta.2010.10.019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Reaction of N-methylpyrrole and 7,7,8,8-tetracyanoquinodimethane (TCNQ) furnishes an intense blue unsymmetrical charge-transfer compound through regioselective attachment of tricyanoquinodimethane at the 2-position of N-methylpyrrole which was found to be selective chemodosimeter for Hg2+ ions in CH3CN:H2O mixture (1:1 v/v, pH = 7.0, 0.01 M HEPES. 0.15 M NaCl) as well as in the solid state when supported on silica, over a variety of metal ions. A plausible mechanism for the sensing process has been proposed and supported through the characterization of the resulting Hg2+ complex and the density functional theory (DFT) studies. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：644 / 650

页数：7