1,1-Dibenzyl-3-(4-fluoro-benzo-yl)thio-urea.

In the title compound, C(22)H(19)FN(2)OS, the 2-fluoro-benzoyl group adopts a trans conformation with respect to the thiono S atom across the N-C bond. In the crystal, inter-molecular N-H⋯S, C-H⋯S and C-H⋯O hydrogen bonds link the mol-ecules, forming a two-dimensional network parallel to (101).

3-(3-Meth-oxy-benzo-yl)-1,1-diphenyl-thio-urea.

The thiono and carbonyl groups in the title compound, C(21)H(18)N(2)O(2)S, adopt an anti disposition with respect to the central C-N bond. The diphenyl-amine rings are twisted relative to each other by a dihedral angle of 82.55 (10)°.

1,1-Dibenzyl-3-(3-chloro-benzo-yl)thio-urea.

In the title compound, C(22)H(19)ClN(2)OS, the thiono and carbonyl groups are trans positioned with respect to a partially double C-N bond. The amide group is twisted relative to the thio-urea fragment, forming a dihedral angle of 46.75 (11)°.

2-Bromo-N-(dibenzyl-carbamothioyl)benzamide.

The 2-bromo-benzoyl group in the title compound, C(22)H(19)BrN(2)OS, adopts an E conformation with respect to the thiono S atom across the N-C bond. In the crystal structure, the mol-ecule is stablized by N-H⋯O inter-molecular hydrogen bonds, forming a one-dimensional chain along the b axis.