(5RS,10SR,15RS)-Trimethyl-truxene.

The title mol-ecule, C(30)H(24), was prepared as a possible precursor to buckminsterfullerene cages. The two enanti-omers adopt the anti configuration, with one S/R and two R/S methyl groups, one anti to the other two. The truxene framework is slightly non-planar: with respect to the central six-ring mean plane, the three methyl C atoms are 1.377 (3), -1.475 (3) and 1.515 (3) Šdistant, whereas the respective proximate peripheral six-ring mean planes make dihedral angles of 6.27 (6), 3.45 (7) and -7.37 (7)°.