title: 1,3-Bis(propan-2-yl)naphthalene.
abstract: In the title compound, C(16)H(20), one of the isopropyl groups shows almost equal displacements [1.252 (1) and -1.270 (1) Å] of its methyl-C atoms from the mean plane of the naphthalene ring system, while the other shows asymmetric displacements [1.586 (2) and -0.315 (1) Å]. In the crystal, the mol-ecules are linked into sheets lying in the ab plane by three C-H⋯π contacts, two involving donors belonging to the isopropyl groups and the third a donor atom from the naphthalene ring system. The different orientations of the isopropyl groups might be attributed to the fact that the C-H⋯π inter-action involving one of them is enhanced by the C-H⋯π inter-action involving the aromatic ring.
authors.forename: Bernd
authors.initials: B
authors.lastname: Schröder
authors.forename: Ligia Rebelo
authors.initials: LR
authors.lastname: Gomes
authors.forename: John Nicolson
authors.initials: JN
authors.lastname: Low