The structure of the title compound (BSA), C6H7NO2S, closely resembles those of other aryl sulfonamides. The geometric parameters in BSA are similar except for some difference in the S=O bond lengths. Molecules are connected by N—H...O hydrogen bonds into layers parallel to the bc plane, with an interlayer distance of 7.734 (2) Å.
In the structure of the title compound (N2CPBA), C13H10ClNO, the conformation of the N—H bond is anti to the ortho‐Cl substituent in the aniline benzene ring. It closely resembles the structure of 2‐chloro‐N‐phenylbenzamide (NP2CBA), although the two amides crystallize in different crystal systems. The molecules of N2CPBA are linked into a chain through an N—H...O hydrogen bond.
The conformation of the NH bond in the structure of the title compound (N34DMPBA), C15H15NO, is anti to the meta-methyl substituent in the aniline ring, similar to that observed with respect to the meta-chloro substituent in N-(3,4-dichlorophenyl)benzamide (N34DCPBA), but in contrast to the syn conformation observed with respect to the meta-methyl substituent in N-(3,4-dimethylphenyl)acetamide. The bond parameters in N34DMPBA are similar to those in N34DCPBA and other benzanilides. The molecules in N34DMPBA are packed into a column-like structure in the direction of the a axis through N—H⋯O hydrogen bonds.
The structure of the title compound, C14H13NO, resembles those of N-(2-chlorophenyl)benzamide, 2-chloro-N-phenylbenzamide, N-(2,3-dichlorophenyl)benzamide, N-(3,4-dichlorophenyl)benzamide and 2-chloro-N-(2-chlorophenyl)benzamide with similar bond parameters. The benzene and methylphenyl rings have a dihedral angle of 63.41 (5)°, while the amide group makes a dihedral angle of 20.5 (1)° with the benzene ring. The molecules are linked into chains in the b-axis direction by N—H⋯O hydrogen bonds.
In the structure of the title compound, C12H17NO, the conformation of the N—H bond is syn to the ortho‐methyl substituent, in contrast to the anti conformation observed for the corresponding meta‐methyl‐substituted amide and side‐chain‐unsubstituted N‐(2‐methylphenyl)acetamide.
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