Mercury(II)-mediated formation of imide-Hg-imide complexes

被引：39

作者：

Fang, Can-liang ^{[1
,2
]}

Zhou, Jin ^{[1
,2
]}

Liu, Xiang-jun ^{[1
]}

Cao, Ze-hui ^{[1
]}

Shangguan, Di-hua ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

DALTON TRANSACTIONS | 2011年 / 40卷 / 04期

关键词：

AQUEOUS-SOLUTION; DNA DUPLEXES; BASE-PAIRS; SENSOR;

D O I：

10.1039/c0dt01118e

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Three different kinds of cyclic imides with imido protons are chosen to interact with Hg(II): succinimide, the simplest cyclic imide (five-membered ring); phthalimide (conjugated five-membered ring); and 1,8-naphthalimide (conjugated six-membered ring). Based on the results of MS, H-1-NMR, XPS, IR spectroscopy and fluorescence response analyses, it is suggested that N-unsubstituted cyclic imides react specifically with Hg(II) and form imide-Hg-imide complexes through an imido proton-metal exchange process. The reaction is reversible and occurs rapidly at moderate to high pH. This discovery expands the comprehension of the specific interaction of Hg(II) with the nucleobase thymine, and may open up new possibilities in designing novel ligands for sensing and removing Hg(II) based on cyclic imides.

引用

页码：899 / 903

页数：5

共 21 条

[1] THE UV-VISIBLE ABSORPTION AND FLUORESCENCE OF SOME SUBSTITUTED 1,8-NAPHTHALIMIDES AND NAPHTHALIC ANHYDRIDES [J].