1-Fluoro-4-[(E)-2-nitro­vin­yl]benzene

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—H...O inter­actions, thus forming C(5) chains propagating in [001].

N-(4-Meth­oxy­benzo­yl)benzene­sulfon­amide

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—H...O hydrogen bonds into C(4) chains running along [100]. The mol­ecules in adjacent chains are linked by weak C—H...O inter­actions, generating R₂² (16) dimeric pairs. Weak C—H...π inter­actions connect the double chains into (001) sheets.

N-(4-Meth­oxy­benzo­yl)-2-methyl­benzene­sulfonamide

In the title compound, C₁₅H₁₅NO₄S, the dihedral angle between the aromatic rings is 80.81 (1)° and the dihedral angle between the planes defined by the S—N—C=O fragment and the sulfonyl benzene ring is 86.34 (1)°. In the extended structure, dimers related by a crystallographic twofold axis are connected by pairs of both N—H...O hydrogen bonds and C—H...O inter­actions, which generate R₂²(8) and R₂²(14) loops, respectively. A weak aromatic π–π stacking inter­action is also observed [centroid–centroid separation = 3.7305 (3) Å].