1. Complexation of cyclohexanocucurbit[6]uril with cadmium ions: X-ray crystallographic and electrochemical study
- Author
-
Xing Feng, Qian-Jiang Zhu, Zhu Tao, Zhong-Fei Li, Yun-Qian Zhang, Jing-Xin Liu, and Sai-Feng Xue
- Subjects
Bridged-Ring Compounds ,Ions ,Cadmium ,X-ray ,Imidazoles ,chemistry.chemical_element ,Water ,Electrochemistry ,Crystallography, X-Ray ,Ion ,Inorganic Chemistry ,chemistry.chemical_compound ,Crystallography ,chemistry ,Solubility ,Coordination Complexes ,Hexanes ,Chelation ,Differential pulse voltammetry ,Physical and Theoretical Chemistry ,Cyclic voltammetry ,Derivative (chemistry) - 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.
- Published
- 2010