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

Acta Crystallogr E Crystallogr Commun. 2020 Sep 18;76(Pt 10):1649-1652. doi: 10.1107/S2056989020012529. eCollection 2020 Oct 1.

Abstract

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.

Keywords: crystal structure; electroluminescence; hole transporter; organic electronics; tri­aryl­amine.