Fig. 3. (a) 1H-NMR spectra (400 MHz, CDCl3, rt) for complexation of 1 with C60, (b) ORTEP representation of single-crystal X-ray structure of C60⊂1 (thermal ellipsoids were set at 50% probability, C = grey, O = red, B = purple, H atoms were omitted for clarity) and (c) packing of C60⊂1 in the solid state indicating the accessible C60 surface in the three cage windows.
