title: 1,3-Diethyl-1,3-diphenyl-urea.
abstract: The mol-ecule of the title compound, C(17)H(20)N(2)O, a symmetrical derivative of urea, shows non-crystallographic C(2) symmetry. Inter-action with the aromatic system of the phenyl substituents as well as amide-type resonance is responsible for the marked planarization of the coordination environments of the N atoms. C-H⋯O contacts give rise to the formation of centrosymmetric dimers in the crystal structure. The closest distance between the centroids of two adjacent rings is 3.8938 (11) Å.
authors.affiliation: Nelson Mandela Metropolitan University, Summerstrand Campus, Department of Chemistry, University Way, Summerstrand, PO Box 77000, Port Elizabeth 6031, South Africa.
authors.forename: Richard
authors.initials: R
authors.lastname: Betz
authors.forename: Thomas
authors.initials: T
authors.lastname: Gerber
authors.forename: Henk
authors.initials: H
authors.lastname: Schalekamp