Calixarenes with diphenylphosphoryl acetamide functions at the upper rim. A new class of highly efficient extractants for lanthanides and actinides
Calixarenes with diphenylphosphoryl acetamide functions at the upper rim. A new class of highly efficient extractants for lanthanides and actinides
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DOI：
10.1039/p29960001175
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发表时间：
1996-06-01
期刊：
影响因子：
--
通讯作者：
Vogt, W
中科院分区：
文献类型：
--
作者：
ArnaudNeu, F;Bohmer, V;Vogt, W
首次合成了各种杯[5]芳烃四烷基醚和杯[5]芳烃五烷基醚，其上缘被类cpo官能团- nhh - c (O)-CH2-P(O)Ph(2)取代，以及一些线性模型化合物。研究了它们在不同条件下从1 mol dm(-3) HNO3水溶液中提取铕、钍、镎、钚和镅到二氯甲烷或邻硝基苯基己基醚的能力。与常用的CMPO [（N，N-二异丁基氨基甲酰甲基）辛基苯基氧化膦]相比，所有新的低聚配体，尤其是车芳烃衍生物，都是非常强的萃取剂。此外，在通过负载液体膜的运输研究中，它们的效率高于CMPO， CMPO即使在10倍浓度下也显示出更低的运输速率。
Various calix[4]arene tetraalkyl ethers and a calix[5]arene pentaalkyl ether substituted at the upper rim by the CMPO-like functional group -NH-C(O)-CH2-P(O)Ph(2) as well as some linear model compounds have been synthesized for the first time. Their ability to extract europium, thorium, neptunium, plutonium and americium from 1 mol dm(-3) aqueous HNO3 into methylene chloride or o-nitrophenyl hexyl ether was studied under various conditions, All the new oligomeric ligands, but especially the calixarene derivatives, are tremendously strong extractants compared with the commonly used CMPO [(N,N-diisobutylcarbamoylmethyl)octylphenylphosphine oxide]. Also in transport studies through supported liquid membranes their efficiency is higher than that of CMPO which shows lower transport rates even at a 10-fold concentration.