Complexation of cyclohexanocucurbit[6]uril with cadmium ions: X-ray crystallographic and electrochemical study.
Complexation of cyclohexanocucurbit[6]uril with cadmium ions: X-ray crystallographic and electrochemical study.
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DOI：
10.1021/ic1013494
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发表时间：
2010-09
影响因子：
4.6
通讯作者：
Xing Feng;Zhong-Fei Li;S. Xue;Z. Tao;Qian-jiang Zhu;Yunqian Zhang;Jing-Xin Liu
中科院分区：
文献类型：
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作者：
Xing Feng;Zhong-Fei Li;S. Xue;Z. Tao;Qian-jiang Zhu;Yunqian Zhang;Jing-Xin Liu
用循环伏安法和微分脉冲伏安法研究了水溶性葫芦[n]脲衍生物环己并葫芦[6]脲（Q*[6]）与Cd（2+）的络合作用。电化学实验结果表明，该配合物具有1：6的高稳定性。我们还获得了镉离子与Q*[6]配合物的单晶X射线结构，其中Q*[6]的每个门户螯合三个镉离子。本研究表明Q*[6]作为有效的镉离子螯合剂和萃取剂的潜在用途。
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.