Static Disorder in Hexagonal Crystal Structures of C 60 at 100 K and 20 K

C 60 · 2C 8 H 10 (100 K): hexagonal space group P6 3 , a = 23.694(4), c = 10.046(2) Å, V = 4884(2) Å 3 , D x = 1.903 g cm −3 , Z = 6, F (000) = 2856, γ(CuKa) = 1.54178 Å, μ = 0.84 mm −1 . C 60 · 2C 8 H 10 (20 K): hexagonal space group P6 3 , a = 23.67(1), c = 10.02(1) Å, V = 4862(6) Å 3 , D x = 1.912 g cm −3 , Z = 6, F (000) = 2856, γ(CuKa) = 1.54178 Å, μ = 0.84 mm −1 . The structures were determined by Patterson syntheses and rigid‐body refinements. The C 60 molecules show two orientations with one molecular centre in common. The solvent molecules are disordered too. Static disorder could not be overcome or influenced by cooling down. A coordination number of 10 was found for the fullerene molecules.