Abstract
The title structure, C18H24N2 center dot C6F6, comprises mixed stacks of alternating 4,4'-di-tert-butyl-2,2'-bipyridine and hexafluorobenzene molecules, both lying on crystallographic mirror planes. There are weak C - H center dot center dot center dot N (2.46 - 2.51 angstrom) and C - H center dot center dot center dot F (2.52 - 2.74 angstrom) hydrogen bonds lying on the mirror planes, as well as pi - pi interactions between stacked aromatic molecules (as indicated by interplanar distances of 3.35 angstrom).