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Aminopyridyl derivative of thiacalix[4]arene-carboxylic acid as ionizable highly selective Ag+ ionophore |
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| Authors: | Xiong Li Shu-Ling Gong Wei-Ping Yang Yan Li Yuan-Yin Chen Xiang-Gao Meng |
| Institution: | 1. National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, People’s Republic of China 2. College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China 3. College of Chemistry, Huazhong Normal University, Wuhan, 430079, People’s Republic of China |
| Abstract: | A novel mono-ionizable receptor 2 possessing three aminopyridyl and one carboxylic group in 1,3-alternate conformation based on thiacalix4]arene, confirmed by single crystal X-ray analysis, was prepared. For competitive solvent extraction of alkali metal (Na+, K+ and Cs+) and some transition metal (Cu2+, Zn2+, TI+, Ag+) cations from aqueous solutions into chloroform, it was found that the introduction of proton-ionizable group (carboxylic acid moiety) into the aminopyridyl-thiacalix4]arene derivative could further improve its Ag+ extractability with high selectivity. |
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