organic compounds
The title compound, C21H12N2O2, contains three aromatic rings, which are not coplanar. The benzene ring and phthalonitrile group are connected by a bridging O atom, and the dihedral angle between them is 71.26 (4)°.
organic compounds
In the title compound, C22H16N2O2S2, two benzene rings are connected by a phthalonitrile moiety, the dihedral angle between them being 47.9 (2)°. The crystal structure is stabilized by intermolecular C—HN contacts.
organic compounds
The title compound, C24H24N4O3, contains three aromatic rings and a triazole ring which are not coplanar. In the crystal structure the molecules are linked by C—HN, C—HO, N—HN, C—Hπ and π–π interactions.
organic compounds
The title compound, C12H13ClN2O3, adopts a keto–hydrazo tautomeric form stabilized by an intramolecular N—HO hydrogen bond. The configuration around the C=N bond is trans. The dihedral angle between the aromatic ring and the aliphatic chain is 5.52 (9)°. Symmetry-related molecules are linked via C—HO hydrogen bonds to form chains along the b axis.
organic compounds
The crystal structure of the title compound, C17H14N2O, is stabilized by weak van der Waals interactions.
organic compounds
The title compound, C12H12ClFN2O3, adopts a keto–hydrazo tautomeric form stabilized by an intramolecular N—HO hydrogen bond. The whole molecule is roughly planar, the largest deviation from the mean plane being 0.328 (3) Å for the terminal methyl C atom of the ethyl side chain.
organic compounds
In the crystal structure of the title compound, C13H20N2O3S, there are some inter- and intramolecular N—HO, N—HN and C—HO hydrogen-bonding interactions.
organic compounds
The title compound, C13H15ClN2O4, adopts a keto–hydrazo tautomeric form stabilized by intramolecular N—HO hydrogen bonds. The phenylhydrazone fragment is planar within ±0.028 (2) Å. The dihedral angle between the phenylhydrazone and oxobutanoate planes is 8.15 (9)°. Symmetry-related molecules are linked via C—HO hydrogen bonds to form chains along [101].
organic compounds
The title compound, C12H12Cl2N2O3, adopts a keto-hydrazo tautomeric form stabilized by an intramolecular hydrogen bond. The molecule can be considered as consisting of two connected fragments, viz. a chlorophenylhydrazone group, with a Z configuration, and an oxobutanoate group. The molecule is roughly planar, the dihedral angle between the benzene ring and the plane including the aliphatic chain being 4.7 (2)°.