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The title compound, C19H12N2O3, was prepared by the reaction of hydrazine and salicylaldehyde with 1,8-naphthoic anhydride in refluxing dimethylformamide. The structure is stabilized by an intramolecular O—H⋯N hydrogen bond and the crystal packing exhibits C—H⋯O hydrogen bonds. The dihedral angle formed by the benzene and naphthalimide systems is 175.9°. [ABSTRACT FROM AUTHOR]

In the title compound, [Cd(N3)2(C10H8N2)2], the cadmium(II) ion is coordinated by two N atoms from two azide groups and four N atoms from two 2,2′-bi­pyridine ligands. The coordin­ation geometry of the cadmium(II) ion is distorted octahedral. The packing is stabilized by intermolecular C—H⋯N hydrogen-bond interactions. [ABSTRACT FROM AUTHOR]

The title compound, C22H19FN2, was prepared by reacting phenylhydrazine with 1-(4-fluorophenyl)-3-( p-tolyl)prop-2-enone. The pyrazoline ring forms a dihedral angle of 5.2 (3)° with the phenyl ring, 8.8 (1)° with the fluorophenyl ring and 80.7 (2)° with the p-tolyl ring. [ABSTRACT FROM AUTHOR]

In the mol­ecule of the title compound, C12H11N3OS, the dihedral angle between the planar rings is 59.4 (2)°. The structure is stabilized by intra­molecular N—H⋯N and inter­molecular N—H⋯S hydrogen bonds. Inter­molecular N—H⋯S hydrogen bonds link the independent mol­ecules into dimers. [ABSTRACT FROM AUTHOR]