Size-complementary cyclotriveratrylene (CTV)-based hosts can incarcerate C , C , and C , thus allowing the selective isolation of these higher-order fullerenes from a commercially available mixture of fullerenes. The hemicarceplexes, formed after the encapsulation of the size-complementary fullerenes within the hosts, are isolated by column chromatography and released at elevated temperature, thereby leading to the isolation of C /C and C in good purities (up to 95 and 88 %, respectively).

We report the synthesis of a cyclotriveratrylene-based molecular container and its distinctly different modes of complexation with dimethyldiazapyrenium and 4,4'-biphenylbisdiazonium ions.