通过选择性超分子封装与释放纯化铀基内嵌金属富勒烯（EMFs）
Purification of Uranium-based Endohedral Metallofullerenes (EMFs) by Selective Supramolecular Encapsulation and Release.
作者信息
Fuertes-Espinosa Carles, Gómez-Torres Alejandra, Morales-Martínez Roser, Rodríguez-Fortea Antonio, García-Simón Cristina, Gándara Felipe, Imaz Inhar, Juanhuix Judith, Maspoch Daniel, Poblet Josep M, Echegoyen Luis, Ribas Xavi
机构信息
QBIS-CAT group, IQCC and Dept. Química, Universitat de Girona, Campus de Montilivi, 17003, Girona, Catalonia, Spain.
Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA.
出版信息
Angew Chem Int Ed Engl. 2018 Aug 27;57(35):11294-11299. doi: 10.1002/anie.201806140. Epub 2018 Jul 26.
Supramolecular nanocapsule 1⋅(BArF) is able to sequentially and selectively entrap recently discovered U @C and unprecedented Sc CU@C , simply by soaking crystals of 1⋅(BArF) in a toluene solution of arc-produced soot. These species, selectively and stepwise absorbed by 1⋅(BArF) , are easily released, obtaining highly pure fractions of U @C and Sc CU@C in one step. Sc CU@C represents the first example of a mixed metal actinide-based endohedral metallofullerene (EMF). Remarkably, the host-guest studies revealed that 1⋅(BArF) is able to discriminate EMFs with the same carbon cage but with different encapsulated cluster and computational studies provide support for these observations.
超分子纳米胶囊1⋅(BArF)能够通过将1⋅(BArF)晶体浸泡在电弧产生的烟灰的甲苯溶液中，依次且选择性地捕获最近发现的U@C和前所未有的Sc CU@C。这些物种被1⋅(BArF)选择性地逐步吸收，很容易被释放出来，一步就可获得高纯度的U@C和Sc CU@C馏分。Sc CU@C代表了基于混合金属锕系元素的内嵌金属富勒烯（EMF）的首个实例。值得注意的是，主客体研究表明1⋅(BArF)能够区分具有相同碳笼但封装簇不同的EMF，并且计算研究为这些观察结果提供了支持。
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