Purification of Uranium-based Endohedral Metallofullerenes (EMFs) by Selective Supramolecular Encapsulation and Release
Purification of Uranium-based Endohedral Metallofullerenes (EMFs) by Selective Supramolecular Encapsulation and Release
复制标题
铀基内嵌金属富勒烯（EMF）的选择性超分子包埋与释放纯化
DOI：
10.1002/anie.201806140
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发表时间：
2018-08-27
影响因子：
16.6
通讯作者：
Ribas, Xavi
中科院分区：
文献类型：
--
作者：
Fuertes-Espinosa, Carles;Gomez-Torres, Alejandra;Ribas, Xavi
超分子纳米胶囊1（BArF）（8）能够顺序地和选择性地捕获最近发现的U-2@C-80和前所未有的Sc2CU@C-80，简单地通过将1（BArF）（8）的晶体浸泡在电弧产生的烟灰的甲苯溶液中。这些物质被1（BArF）（8）选择性地逐步吸收，很容易释放，一步获得高纯度的U-2@C-80和Sc2CU@C-80馏分。Sc2CU@C-80代表基于混合金属锕系元素的内嵌金属富勒烯（EMF）的第一个实例。值得注意的是，主客体研究表明，1（BArF）（8）能够区分具有相同碳笼但具有不同封装簇的EMF，并且计算研究为这些观察提供了支持。
Supramolecular nanocapsule 1(BArF)(8) is able to sequentially and selectively entrap recently discovered U-2@C-80 and unprecedented Sc2CU@C-80, simply by soaking crystals of 1(BArF)(8) in a toluene solution of arc-produced soot. These species, selectively and stepwise absorbed by 1(BArF)(8), are easily released, obtaining highly pure fractions of U-2@C-80 and Sc2CU@C-80 in one step. Sc2CU@C-80 represents the first example of a mixed metal actinide-based endohedral metallofullerene (EMF). Remarkably, the host-guest studies revealed that 1(BArF)(8) is able to discriminate EMFs with the same carbon cage but with different encapsulated cluster and computational studies provide support for these observations.