3-Benzoyl-1,1-dibenzylthiourea

Abstract

Two independent thiourea molecules comprise the asymmetric unit of the title compound, C22H20N2OS. The central N–C(=S)N(H)C(=O) atoms in each molecule are virtually superimposable and each is twisted [C—N—C—S torsion angles = 121.3 (3) and −62.3 (4)°]. The molecules differ only in terms of the relative orientations of the benzyl benzene rings [major difference between the C—N—C—C torsion angles of −146.6 (3) and −132.9 (3)°]. The presence of N—H...S hydrogen bonding leads to the formation of supramolecular chains along the a axis. These are consolidated in the crystal packing by C—H...O interactions. The crystal was found to be a combined non-merohedral and racemic twin (twin law overline{1}00/0overline{1}0/001), with the fractional contribution of the minor components being approximately 9 and 28%.