Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom.
J Am Chem Soc. 2017 Jan 11;139(1):75-78. doi: 10.1021/jacs.6b11523. Epub 2016 Dec 20.
The self-assembly of 4-fold-symmetric porphyrins with Fe or Zn gave a new cubic ML cage framework with electron-deficient walls. This cage bound C-indene or C-anthracene bisadducts selectively, whereas unfunctionalized fullerenes and monoadducts were not encapsulated. The FeL cage also enabled the reaction of C 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 bisadducts have found use as electron acceptors, because these adducts currently require laborious and time-consuming syntheses and purification.
四配位卟啉与铁或锌的自组装得到了具有电子缺电子壁的新型立方 ML 笼状骨架。该笼选择性地结合 C-茚或 C-蒽双加成物，而未官能化的富勒烯和单加成物则不被包封。FeL 笼还使得 C 和蒽的反应能够在不存在笼的情况下没有反应的条件下选择性地生成双加成物。这些发现与聚合物太阳能电池有关，其中 C 双加成物已被用作电子受体，因为这些加成物目前需要费力和耗时的合成和纯化。
