Potassium N-bromo-2-methyl­benzene­sulfonamidate sesquihydrate

In the structure of the title compound, K+·C7H7BrNO2S−·1.5H2O, the K+ ion is hepta­coordinated by three O atoms from water mol­ecules and by four sulfonyl O atoms of N-bromo-2-methyl­benzene­sulfonamide anions. The S—N distance of 1.577 (5) Å is consistent with an S=N double bond. The crystal structure comprises sheets in the ac plane which are further stabilized by O—H⋯Br and O—H⋯N hydrogen bonds

4-Chloro-N-(2,6-dimethyl­phen­yl)benzene­sulfonamide

In the title compound, C14H14ClNO2S, the amido H atom orients itself away from both the ortho-methyl groups in the adjacent aromatic ring. The mol­ecule is twisted at the S atom with an C—SO2—NH—C torsion angle of −69.9 (2)°. The two aromatic rings are tilted relative to each other by 31.9 (1)°. In the crystal, the mol­ecules are packed into zigzag chains along the b axis via inter­molecular N—H⋯O hydrogen bonds

N-(3,4-Dichloro­phen­yl)-4-methyl­benzene­sulfonamide

In the title compound, C13H11Cl2NO2S, the conformation of the N—C bond in the C—SO2—NH—C segment has gauche torsions with respect to the S=O bonds. The mol­ecule is bent at the S atom with a C—SO2—NH—C torsion angle of 64.3 (4)°. Furthermore, the conformation of the N—H bond and the meta-chloro group in the adjacent benzene ring are anti to each other. The two benzene rings are tilted relative to each other by 82.5 (1)°. In the crystal, mol­ecules are linked by pairs of N—H⋯O(S) hydrogen bonds, forming inversion dimers

4-Chloro-N-(3,5-dimethyl­phen­yl)benzene­sulfonamide

The asymmetric unit of the title compound, C14H14ClNO2S, contains two independent mol­ecules, which are twisted at the S atoms with C—SO2—NH—C torsion angles of −69.4 (7)° and 66.0 (8)°. The sulfonyl and the anilino benzene rings are tilted relative to each other by 49.0 (4) and 61.7 (3)° in the two mol­ecules. In the crystal, the mol­ecules are linked into chains by N—H⋯O hydrogen bonds

2-Chloro-N-[(2-methyl­phen­yl)sulfon­yl]acetamide

In the title compound, C9H10ClNO3S, the amide H atom is syn with respect to the ortho-methyl group in the benzene ring and the C—S—N—C torsion angle is −66.9 (2)°. An intra­molecular N—H⋯Cl hydrogen bond occurs. The crystal structure features inversion-related dimers linked by pairs of N—H⋯O hydrogen bonds

N-(2,4,6-Trichloro­phen­yl)maleamic acid

In the crystal structure of the title compound, C10H6Cl3NO3, the conformation of the amide bond is trans. The C=O and O—H bonds of the acid group are in the relatively rare anti position to each other. This is a consequence of the intra­molecular O—H⋯O hydrogen bond donated to the amide carbonyl group stabilizing the mol­ecular structure. In the crystal, inter­molecular N—H⋯O hydrogen bonds link the mol­ecules into zigzag chains along the c axis

2,2-Dimethyl-N-(2-methyl­phenyl­sulfon­yl)propanamide

In the title compound, C12H17NO3S, the amide H atom is syn to the ortho-methyl group of the benzene ring and the C—S—N—C torsion angle is −65.39 (17)°. The crystal structure features inversion-related dimers linked by pairs of N—H⋯O hydrogen bonds in which the acceptor O atom is bound to the S atom

N-(4-Chloro­phen­yl)-2,4-dimethyl­benzene­sulfonamide

Mol­ecules of the title compound, C14H14ClNO2S, are bent at the S atom with a C—SO2—NH—C torsion angle of 57.7 (2)°. The benzene rings are rotated relative to each other by 68.1 (1)°. In the crystal, N—H⋯O(S) hydrogen bonds pack the mol­ecules into infinite chains parallel to the b axis

N-(2,5-Dichloro­phen­yl)maleamic acid

The asymmetric unit of the title compound, C10H7Cl2NO3, contains two independent mol­ecules. The mol­ecular conformation of each maleamic unit is stabilized by an intra­molecular O—H⋯Ocarbon­yl hydrogen bond owing to the anti disposition of the participating entities. The mean planes through the benzene ring and the amido group are inclined at angles of 45.7 (1) and 40.8 (1)° in the two mol­ecules. In the crystal, the independent mol­ecules self-associate via N—H⋯O hydrogen bonds into zigzag ribbons propagating along the a axis. The ribbons are weakly coupled by C—H⋯π and C—H⋯O inter­actions