In the title compound, C(17)H(17)ClN(2)O(3)S, the central carbonyl-thio-urea unit is nearly planar [maximum atomic deviation = 0.019 (3) Å] and makes dihedral angles of 2.47 (7) and 17.76 (6)° with the terminal benzene rings. An intra-molecular N-H⋯O hydrogen bond occurs. Weak inter-molecular C-H⋯S and C-H⋯Cl hydrogen bonding is observed in the crystal structure.

In the title compound, C(14)H(12)ClNO, the central acetamide plane forms dihedral angles of 76.0 (2) and 64.0 (2)° with the phenyl rings and the phenyl rings form a dihedral angle of 71.8 (2)° with each other.

In the crystal of the title compound, C(12)H(10)ClNO(2)S, the asymmetric unit contains two independent mol-ecules. The N-C bonds in the C-SO(2)-NH-C segments have gauche torsions with respect to the S=O bonds. The mol-ecules are twisted at the S atoms with C-SO(2)-NH-C torsion angles of -53.8 (3) and -63.4 (3)° in the two mol-ecules. The benzene rings are tilted relative to each other by 69.1 (...

There are two mol-ecules in the asymmetric unit of the title compound, C(8)H(8)ClNO, which are linked in the crystal structure via N-H⋯O hydrogen bonds into chains along the b axis. C-H⋯O contacts also occur. The benzene ring makes dihedral angles of 5.9 (1) and 16.7 (1)°with the attached amide group in the two independent molecules.