Effects of Solvents on Reaction Products: Synthesis of Endohedral Metallofullerene Oxazoline and Epoxide.

Herein, we performed the reactions of MN@-C (M = Sc and Lu) with the methanol (CHOH) solution of TBAOH (note that both CHO and OH are nucleophiles) in benzonitrile (PhCN) and dimethylformamide, respectively. It is found that OH ions rather than CHO ions selectively attacked the fullerene cage to form the MN@C-O intermediate. Although the fullerene cage is initially attacked by OH in both PhCN and DMF solvents, the products are quite different.

Diversity of Metal-Fullerene Framework Structures Regulated by Metal Salts.

Taking into account the diversity of fullerene ligands and metal salts, metal-fullerene frameworks (MFFs) present a variety of structures. Currently, the structural control of MFFs mainly relies on the design and synthesis of fullerene ligands, while the influence of metal building units on the structures has been rarely studied. The present work represents a systematical investigation of fullerene-linked supramolecular architectures incorporating different metal salts.