Separation and Selective Formation of Fullerene Adducts within an MII8L6 Cage
Separation and Selective Formation of Fullerene Adducts within an MII8L6 Cage
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DOI：
10.1021/jacs.6b11523
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发表时间：
2017-01-11
影响因子：
15
通讯作者：
Nitschke, Jonathan R.
中科院分区：
文献类型：
--
作者：
Brenner, Wolfgang;Ronson, Tanya K.;Nitschke, Jonathan R.
四重对称卟啉与Fe-Ⅱ或Zn-Ⅱ的自组装得到了一种新的具有缺电子壁的立方（M8 L 6）-L-II笼形骨架。该笼选择性地结合C-60-茚或C-60-蒽双加合物，而未官能化的富勒烯和单加合物不被封装。（Fe 8L 6）-L-II笼还使得C-60和蒽的反应能够在不存在笼时没有观察到反应的条件下选择性地产生双加合物。这些发现在聚合物太阳能电池的背景下具有相关性，其中C-60双加合物已被发现用作电子受体，因为这些加合物目前需要费力且耗时的合成和纯化。
The self-assembly of 4-fold-symmetric porphyrins with Fe-II or Zn-II gave a new cubic (M8L6)-L-II cage framework with electron-deficient walls. This cage bound C-60-indene or C-60-anthracene bisadducts selectively, whereas unfunctionalized fullerenes and monoadducts were not encapsulated. The (Fe8L6)-L-II cage also enabled the reaction of C-60 and anthracene to yield the bisadducts selectively under conditions where no reaction was observed in the absence of the cage. These findings have relevance in the context of polymer solar cells, where C-60 bisadducts have found use as electron acceptors, because these adducts currently require laborious and timeconsuming syntheses and purification.