The encapsulation of fullerenes with a cyclotriveratrylene derivative, capable to self assemble into a dimer by means of three strong 4-ureidopyrimidinone quadruple hydrogen bonds is described. The system shows preference for C84, allowing its easy enrichment directly from fullerene mixtures.
Preferential separation of fullerene from fullerene mixtures by encapsulation
Chem. Commun. 2007, 5016-5018.