How are fullerene molecular crystals held together?

Fullerene molecular crystals, such as those formed by C${}_{60}$ (buckminsterfullerene), are held together by weak intermolecular forces known as van der Waals forces.12

These forces arise from quantum fluctuations that create momentary electric dipole moments in the molecules, leading to an attractive interaction between them. Because these interactions are relatively weak, the molecules in the crystal maintain their individual identity. In the solid state, these spherical molecules typically arrange themselves into a face-centered cubic (fcc) lattice structure.21