Molecular tubes and capsules Part III. The first X-ray crystallographic evidence of a cyclic aniline trimer via self-complementary N–H⋯π interactions: the aniline inclusion both inside and outside the macrocyclic cavity

Abstract

Cyclic aniline trimers are found, for the first time, in the hydrophobic void space formed by a pyromellitic diimide-based macrocycle in the solid state, where self-complementary N–H⋯π interactions play an important role in the formation of the trimers.