title: Separation and Selective Formation of Fullerene Adducts within an M(II)(8)L(6)  Cage.
abstract: The self-assembly of 4-fold-symmetric porphyrins with FeIIor ZnIIgave a new cubic MII8L6cage framework with electron-deficient walls. This cage bound C60-indene or C60-anthracene bisadducts selectively, whereas unfunctionalized fullerenes and monoadducts were not encapsulated. The FeII8L6cage also enabled the reaction of C60and 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 C60bisadducts have found use as electron acceptors, because these adducts currently require laborious and time-consuming syntheses and purification.
authors.affiliation: Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Brenner
authors.affiliation: Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom.
authors.forename: Tanya K
authors.initials: TK
authors.lastname: Ronson
authors.affiliation: Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom.
authors.forename: Jonathan R
authors.identifier: 0000-0002-4060-5122
authors.initials: JR
authors.lastname: Nitschke