A benzyl carbazate-based colorimetric chemosensor for relay detection of Cu2+ and S2- in near-perfect aqueous media

被引：16
|
作者：
Park, Soyoung [1 ]
Choe, Donghwan [1 ]
Lee, Jae Jun [1 ]
Kim, Cheal [1 ]
机构：
[1] Seoul Natl Univ Sci & Tech SNUT, Dept Fine Chem, Seoul 01811, South Korea
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2021年 / 1240卷
基金：
新加坡国家研究基金会;
关键词：
Cu2+; S2-; Water samples; Colorimetric; Chemosensor; NAKED-EYE DETECTION; EFFECTIVE CORE POTENTIALS; SELECTIVE DETECTION; FLUORESCENT-PROBE; MOLECULAR CALCULATIONS; NICKEL(II) COMPLEXES; CRYSTAL-STRUCTURES; METAL-IONS; IN-VITRO; SULFIDE;
D O I：
10.1016/j.molstruc.2021.130576
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A benzyl carbazate-based colorimetric chemosensor HB (benzyl (E)-2-(2-hydroxy-3-methoxy-5-nitrobenzylidene)hydrazine-1-carboxylate) was synthesized and used for relay detection of Cu2+ and S-2(-). HB can sense Cu2+ by the color variation from yellow to colorless and be used in real sample. HB-Cu2+ detected S2- though demetallation with color variation form colorless to yellow. Detection limits of HB for Cu2+ and S2- were calculated to be 0.20 and 0.60 mu M which are greatly below WHO guidelines (31.4 and 14.8 mu M). In addition, HB and HB-Cu2+ could detect Cu2+ and S-2(-), respectively, without any interference of other ions. The detection processes of HB to Cu2+ and S2- were illustrated by ESI-MS, UV-visible spectroscopy and DFT calculation. (C) 2021 Elsevier B.V. All rights reserved.
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页数：9
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