title: 4,5-Bis(2,4-di-tert-butyl-phen-oxy)phthalonitrile.
abstract: In the title compound, C(36)H(44)N(2)O(2), the dihedral angles between the phthalonitrile ring and the two di-tert-butyl-benzene rings are 68.134 (8) and 70.637 (11)°. The two nitrile groups are almost coplanar with the phthalonitrile ring except for one of the N atoms which deviates from the plane by 0.125 (4) Å. One of the tert-butyl groups is disordered over two orientations, with refined occupancies of 0.814 (6) and 0.186 (6). Intra-molecular C-H⋯O inter-actions stabilize the molecular structure. The crystal packing is stabilized by inter-molecular C-H⋯N inter-actions.
authors.affiliation: Department of Chemistry, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa.
authors.forename: Johannes H
authors.initials: JH
authors.lastname: van Tonder
authors.forename: Theunis J
authors.initials: TJ
authors.lastname: Muller
authors.forename: Barend C B
authors.initials: BC
authors.lastname: Bezuidenhoudt