organic compounds
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In the title compound, C12H11Cl3N2O4, the dihedral angle between the aromatic ring and the hydrazine (NH—N=C) grouping is 52.2 (3)°. The butanedioate groups exhibit planar conformations. An intramolecular N—HO hydrogen bond links the N—H group of the hydrazine to one of the methoxy groups of the butanedioate moiety. In the crystal, molecules are linked by C—HO hydrogen bonds and π–π interactions are also observed [centroid–centroid separation = 3.535 (1) Å].
organic compounds
Open access
In the title compound, C18H14N2O, the dihedral angle between the methylphenyl ring and the phthalazone ring system (r.m.s. deviation = 0.034 Å) is 53.93 (9)°. In the crystal, molecules are connected by C—HO hydrogen bonds, forming chains along [101]. The chains are linked by π–π interactions [centroid–centroid distance 3.6990 (12) Å], forming layers parallel to (10-1).
organic compounds
Open access
In the title compound, C18H21N3O2, the dihedral angle between the benzene rings is 68.85 (11)°. In the crystal, the molecules are linked by C—HO and N—HO hydrogen bonds, as well as weak C—Hπ contacts, forming a three-dimensional supramolecular architecture.
organic compounds
Open access
In the title compound, C30H40FNO3, the dihedral angle between the benzene rings is 57.76 (7)°. The alkyl chain adopts an all-trans conformation. In the crystal, molecules are linked by pairs of C—HO hydrogen bonds, forming inversion dimers.