Crystal structure of tris-[4-(naphthalen-1-yl)phen-yl]amine.

In the title mol-ecule, C48H33N, the central N atom shows no pyramidalization, so that the N atom and the three C atoms bound to the N atom lie almost in the same plane. The three para-phenyl-ene rings bonded to the N atom are in a propeller form. All of the naphthalene ring systems are slightly bent. In the crystal, mol-ecules form an inversion dimer, through two pairs of C-H⋯π inter-actions, which further inter-acts with the adjacent dimer via another two pairs of C-H⋯π inter-actions, forming a column structure along the a axis. There are no significant inter-actions between these column structures.