环己烷并[6]瓜环与镉离子的络合作用：X 射线晶体学和电化学研究。

Complexation of cyclohexanocucurbit[6]uril with cadmium ions: X-ray crystallographic and electrochemical study.

机构信息

Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, People's Republic of China.

出版信息

Inorg Chem. 2010 Sep 6;49(17):7638-40. doi: 10.1021/ic1013494.

DOI:10.1021/ic1013494

PMID:20698530

Abstract

Complexation of cyclohexanocucurbit[6]uril (Q*[6]), a water-soluble cucurbit[n]uril derivative, with Cd(2+) ions has been studied by means of cyclic voltammetry and differential pulse voltammetry. The electrochemical experimental data prove the formation of a highly stable 1:6 Q*[6]/Cd(2+) complex. We also obtained the single-crystal X-ray structure of a cadmium ion complex with Q*[6], in which each portal of Q*[6] chelates three cadmium ions. The present study suggests the potential utility of Q*[6] as an effective cadmium ion chelator and extractant.

摘要

通过循环伏安法和差分脉冲伏安法研究了水溶性葫芦[6]脲衍生物环己烷[6]冠[6]（Q*[6]）与 Cd(2+) 离子的络合作用。电化学实验数据证明了高度稳定的 1:6 Q*[6]/Cd(2+) 配合物的形成。我们还获得了 Q*[6]与 Cd(2+) 离子配合物的单晶 X 射线结构，其中 Q*[6]的每个端口螯合三个 Cd(2+) 离子。本研究表明 Q*[6]作为一种有效的 Cd(2+) 离子螯合剂和萃取剂具有潜在的应用价值。