Comprehensive Comparison of Alkali Metal Extraction with a Series of Calix[4]arene Derivatives with Propyl and/or Acetic Acid Groups
Comprehensive Comparison of Alkali Metal Extraction with a Series of Calix[4]arene Derivatives with Propyl and/or Acetic Acid Groups
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一系列带丙基和/或乙酸基团的杯[4]芳烃衍生物萃取碱金属的综合比较
DOI：
10.1007/s10847-015-0586-8
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
K. Ohto
中科院分区：
文献类型：
--
作者：
H. Sadamatsu;T. Hanada;S. Morisada;H. Kawakita;K. Ohto
合成了一系列含丙基和/或乙酸基的锥形α-t-辛基杯[4]芳烃衍生物，并研究了它们在单一和竞争金属体系中对碱金属的萃取性能。所有的离子交换衍生物都表现出一定的萃取能力。三丙基单乙酸衍生物表现出锂的选择性，而其他具有多个乙酸基的衍生物在单个金属体系中表现出钠对锂的选择性。在竞争体系中观察到了显著的金属选择性，因为只有优先金属离子占据了导数。在杯[4]芳烃上引入一个或几个配位惰性亲油丙基，不仅对第一个金属离子，而且对第二个离子都有尺寸分辨性能。通过~1H-核磁共振谱和亲脂性丙基的影响，讨论了金属负载前后的结构变化对金属选择性的影响。
A series of cone conformationalp-t-octylcalix[4]arene derivatives with propyl and/or acetic acid groups have been synthesized and investigated for alkali metal extraction in individual and competitive metal systems. All ion-exchangeable derivatives exhibited extraction ability. Tripropyl—monoacetic acid derivative exhibited lithium selectivity, whereas other derivatives with multiple acetic acid groups exhibited sodium selectivity over lithium in an individual metal system. The significant metal selectivity was observed in a competitive system, because only the preferential metal ion occupied the derivative. A coordinatively-inert lipophilic propyl group or a few introduced on the calix[4]arene contributed to the size-discriminating property not only for the first metal ion but also for the second ion. The metal selectivity is discussed based on structural change before and after metal loading by using1H-NMR spectra and an effect of lipophilic propyl groups.