Syntheses and Metal-ion Binding Properties of Calix[4]arene Derivatives Containing Soft Donor Atoms: Highly Selective Extraction Reagents for Ag+ |
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| Authors: | Jian Xie Qi-Yu Zheng Yan-Song Zheng Chuan-Feng Chen Zhi-Tang Huan |
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| Affiliation: | (1) LMRSS, Center for Molecular Science, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100080, China |
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| Abstract: | A series of calix[4]arene derivatives containing N or S atoms atthe lower rim were synthesized by etherification of OH groups and their metal-ion extraction abilities were studied. The extraction selectivity for Ag+ over other ions with these novel receptors was outstanding. Among these ligands, calix[4]arene podand, which possessed two linear ligands, has shown better binding ability with Ag+ than calix[4]crowns. |
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| Keywords: | calix[4]arenes calix[4](thia)crowns metal-ion extraction |
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