title: 4,4'-Di-tert-butyl-2,2'-bipyridine.
abstract: In the title compound, C(18)H(24)N(2), the mol-ecular unit adopts a trans conformation around the central C-C bond [N-C-C-N torsion angle of 179.2 (3)°], with the two aromatic rings almost coplanar [dihedral angle of only 0.70 (4)°]. The crystal packing is driven by co-operative contacts involving weak C-H⋯N and C-H⋯π inter-actions, and also the need to fill effectively the available space.
authors.forename: Tatiana R
authors.initials: TR
authors.lastname: Amarante
authors.forename: Sónia
authors.initials: S
authors.lastname: Figueiredo
authors.forename: André D
authors.initials: AD
authors.lastname: Lopes
authors.forename: Isabel S
authors.initials: IS
authors.lastname: Gonçalves
authors.forename: Filipe A
authors.initials: FA
authors.lastname: Almeida Paz