organic compounds
Open access
The title compound, C8H6FNO2, is almost planar (r.m.s. deviation for the non-H atoms = 0.019 Å) and the conformation across the C=C bond is trans. The C and H atoms of the side chain are disordered over two sets of sites in a 0.56 (3):0.44 (3) ratio. In the crystal, molecules are linked by C—HO interactions, thus forming C(5) chains propagating in [001].
organic compounds
Open access
In the title compound, C14H12N2O5S, the dihedral angle between the aromatic rings is 86.29 (1)° and the conformation between the C=O bond of the amide group and the meta-NO2 group is syn. The C—S—N—C torsion angle is −65.87 (19)° and the molecule has an L-shaped conformation. In the crystal, the molecules are connected into inversion dimers through pairs of N—HO hydrogen bonds and C—HO interactions forming R22(8) and R22(14) loops, respectively. The dimers are connected by further C—HO interactions, thereby forming (100) sheets.
organic compounds
Open access
In the title compound, C14H13NO4S, the dihedral angle between the aromatic rings is 69.81 (1)°; the dihedral angle between the planes defined by the S—N—C=O segment of the central chain and the sulfonyl benzene ring is 74.91 (1)°. In the crystal, the molecules are linked by weak N—HO hydrogen bonds into C(4) chains running along [100]. The molecules in adjacent chains are linked by weak C—HO interactions, generating R22 (16) dimeric pairs. Weak C—Hπ interactions connect the double chains into (001) sheets.