4-Chloro-N-(4-methyl-benzo-yl)benzene-sulfonamide.

In the title compound, C(14)H(12)ClNO(3)S, the conformation of the N-H bond in the C-SO(2)-NH-C(O) segment is anti to the C=O bond. The mol-ecule is twisted at the S atom with a torsion angle of 69.0 (2)°.

4-Chloro-N-(2-chloro-benzo-yl)benzene-sulfonamide.

In the structure of the title compound, C(13)H(9)Cl(2)NO(3)S, the conformation of the N-H bond in the C-SO(2)-NH-C(O) segment is anti to the C=O bond. The mol-ecule is twisted at the S atom with a torsion angle of 65.7 (2)°.

2-Chloro-N-(4-methyl-benzo-yl)benzene-sulfonamide.

In the title compound, C(14)H(12)ClNO(3)S, the conformation of the N-H bond in the C-SO(2)-NH-C(O) segment is anti to the C=O bond. The dihedral angle between the sulfonyl benzene ring and the -SO(2)-NH-C-O segment is 89.4 (1)° and that between the sulfonyl and benzoyl benzene rings is 89.

2-Chloro-N-(3-chloro-benzo-yl)benzene-sulfonamide.

The asymmetric unit of the title compound, C(13)H(9)Cl(2)NO(3)S, contains two independent mol-ecules. The conformation of the C=O bond is anti to the meta-Cl group in the chloro-benzoyl group of one of the mol-ecules and syn in the other. The dihedral angles between the sulfonyl and benzoyl benzene rings are 77.

2-Chloro-N-(3-methyl-benzo-yl)benzene-sulfonamide.

In the title compound, C(14)H(12)ClNO(3)S, the N-H bond is in an anti-periplanar conformation to the C=O bond. The dihedral angle between the two aromatic rings is 74.7 (1)°.

N-(Phenyl-sulfon-yl)acetamide.

In the title compound, C(8)H(9)NO(3)S, the N-H bond is in an anti-periplanar conformation with respect to the C=O bond. The crystal packing is stabilized by N-H⋯O hydrogen bonds, generating C(4) chains propagating in [001].

4-Chloro-N-(3,4-dimethyl-phen-yl)benzene-sulfonamide.

In the title compound, C(14)H(14)ClNO(2)S, the angle between the sulfonyl and aniline benzene rings is 65.5 (1)°. The crystal structure features inversion dimers linked by pairs of N-H⋯O hydrogen bonds.

N-(2-Chloro-phen-yl)-2,4-dimethyl-benzene-sulfonamide.

In the title compound, C(14)H(14)ClNO(2)S, the conformation of the N-C bond in the C-SO(2)-NH-C segment has gauche torsions with respect to the S=O bonds. The mol-ecule is bent at the S atom with a C-SO(2)-NH-C torsion angle of -54.9 (2)°.

2-Chloro-N-(2-methyl-benzo-yl)benzene-sulfonamide.

In the title compound, C(14)H(12)ClNO(3)S, the N-H bond is anti-periplanar to the C=O bond. The dihedral angle between the two aromatic rings is 78.7 (1)°.

N-(3-Methyl-phen-yl)succinimide.

In the title compound, C(11)H(11)NO(2), the dihedral angle between the ring planes is 52.5 (1)°.

4-Chloro-N-(4-chloro-benzo-yl)benzene-sulfonamide.

In the title compound, C(13)H(9)Cl(2)NO(3)S, the conformation of the N-H bond in the C-SO(2)-NH-C(O) segment is anti to the C=O bond. The mol-ecule is twisted at the S atom with a torsion angle of 67.5 (3)°.

4-Chloro-N-(3,4-dimethyl-phen-yl)benzamide.

In the title compound, C(15)H(14)ClNO, the N-H bond is trans to the C=O bond. The dihedral angle between the two aromatic rings is 5.5 (2)°.

Methyl N-(2,3-dichloro-phen-yl)succinamate.

The asymmetric unit of the title compound, C(11)H(11)Cl(2)NO(3), contains two independent mol-ecules. In both the molecules, the H atoms of the adjacent -CH(2) groups of the acid segments orient themselves away from the amide O and the carbonyl O atoms. The C=O and O-CH(3) bonds of the ester group are in syn positions with respect to each other.

N-(2,6-Dimethyl-phen-yl)-4-methyl-benzene-sulfonamide.

In the title compound, C(15)H(17)NO(2)S, the mol-ecule is bent at the S atom, the C-SO(2)-NH-C torsion angle being 88.0 (2)°. The dihedral angle between the two aromatic rings is 49.

N-(3,4-Dimethyl-phen-yl)-2,4-dimethyl-benzene-sulfonamide.

In the title compound, C(16)H(19)NO(2)S, the dihedral angle between the aromatic rings is 47.2 (2)°. The crystal structure features zigzag C(4) chains linked by N-H⋯O hydrogen bonds.

2,2,2-Tribromo-N-(3-chloro-phen-yl)acetamide.

In the title compound, C(8)H(5)Br(3)ClNO, the conformation of the N-H bond is anti to the 3-chloro substituent in the benzene ring. An intra-molecular N-H⋯Br hydrogen bond occurs. In the crystal, mol-ecules are packed into infinite chains in the a-axis direction by N-H⋯O hydrogen bonds.

N-(3,5-Dichloro-phen-yl)-2,4-dimethyl-benzene-sulfonamide.

In the crystal structure of the title compound, C(14)H(13)Cl(2)NO(2)S, the conformation of the N-C bond in the C-SO(2)-NH-C segment has gauche torsions with respect to the S=O bonds. The mol-ecule is bent at the N atom, with an C-SO(2)-NH-C torsion angle of -54.9 (3)°.

N-(2,4-Dimethyl-phen-yl)-2,4-dimethyl-benzene-sulfonamide.

In the crystal structure of the title compound, C(16)H(19)NO(2)S, the mol-ecule is bent at the S atom with a C-SO(2)-NH-C torsion angle of 66.5 (2)°. The dihedral angle between the sulfonyl and aniline benzene rings in the mol-ecule is 41.

2-Chloro-N-(2-chloro-benzo-yl)benzene-sulfonamide.

In the structure of the title compound, C(13)H(9)Cl(2)NO(3)S, the N-H bond is anti to the C=O bond and the dihedral angle between the two aromatic rings is 76.9 (1)°. In the crystal structure, mol-ecules are linked by N-H⋯O(S) hydrogen bonds to form inversion dimers.

N-Benzoyl-4-methyl-benzene-sulfonamide.

In the title compound, C(14)H(13)NO(3)S, the N-H bond in is anti to the C=O bond. The dihedral angle between the two aromatic rings is 79.4 (1)°.

N-Benzoyl-2-methyl-benzene-sulfonamide.

In the title compound, C(14)H(13)NO(3)S, the conformation of the N-H bond in the C-SO(2)-NH-C(O) segment is anti to the C=O bond. The tolyl and benzoyl groups are twisted about the S-N bond, with a C-S-N-C torsion angle of 68.8 (4)°.

N-(2,3-Dimethyl-phen-yl)-2,4-dimethyl-benzene-sulfonamide.

The asymmetric unit of the title compound, C(16)H(19)NO(2)S, contains two independent mol-ecules: the dihedral angles between the sulfonyl and anilino benzene rings in the two mol-ecules are 41.5 (1) and 43.8 (1)°.

Erratum: N,N'-Bis(phenyl-sulfon-yl)maleamide. Corrigendum.

The chemical name of the title compound in the paper by Gowda, Foro, Suchetan & Fuess [Acta Cryst. (2010), E66, o187] is corrected.[This corrects the article DOI: 10.

2,4-Dimethyl-N-(4-methyl-phen-yl)benzene-sulfonamide.

The asymmetric unit of the crystal of the title compound, C(15)H(17)NO(2)S, contains two independent mol-ecules, which are twisted at the S-N bonds with C-SO(2)-NH-C torsion angles of 48.3 (2) (mol-ecule 1) and -75.7 (3)° (mol-ecule 2).

N-(2,5-Dichloro-phen-yl)-4-methyl-benzene-sulfonamide.

In the title compound, C(13)H(11)Cl(2)NO(2)S, the N-C bond in the C-SO(2)-NH-C segment has gauche torsion angles with respect to the S=O bonds. The mol-ecule is bent at the S atom with an C-SO(2)-NH-C torsion angle of 62.1 (2)°.