Abstract
The title compound, C14H11FN2OS, contains two molecules (A and B) in the asymmetric unit, with different conformations. In molecule A, the dihedral angles between the central thiourea grouping and the phenyl and fluorobenzene rings are 28.77 (8) and 41.82 (8)degrees, respectively, and the dihedral angle between the ring planes is 70.02 (9)degrees. Equivalent data for molecule B are 8.46 (8), 47.78 ( 8) and 52.99 (9)degrees, respectively. Both molecules feature an intramolecular N-H center dot center dot center dot O hydrogen bond, which closes an S(6) ring. In the crystal, A+B dimers linked by pairs of N-H center dot center dot center dot S hydrogen bonds generate R-2(2)(8) loops.