The asymmetric unit of the title compound, C(18)H(12)N(4), consists of a half-mol-ecule, where the two halves of the mol-ecule are related by inversion symmetry. The mol-ecule is effectively planar, with the largest deviation from the 22-atom mean plane, measuring 0.024 (2) Å, exhibited by the ortho-C atom of the phenyl ring. The crystal structure exhibits π-stacking, with an inter-planar spaci...

The title compound, C(18)H(23)N(3)O(3), crystallized with two independent mol-ecules (A and B) in the asymmetric unit. The phenyl ring and the 1,2,4-oxadiazole ring are inclined to one another by 19.9 (3)° in mol-ecule A and 7.3 (3)° in mol-ecule B. The absolute structure of the title compound was referred to the transfered chiral center (S) of one of the starting reacta-nts. In the crystal, A ...

The asymmetric unit of the title compound, C(18)H(17)ClN(2)O(2)·0.5H(2)O, contains two organic mol-ecules and one solvent water mol-ecule. In each organic mol-ecule, the cyclo-hexene ring adopts an envelope conformation with the C atom connecting the two methyl groups on the flap; the 4H-pyran ring is nearly planar [maximum deviation = 0.113 (3) Å in one mol-ecule and 0.089 (3) Å in the other m...

The asymmetric unit of the title compound, C(21)H(18)ClN(3)O, contains two crystallographically independent mol-ecules which differ slightly in the orientations of chloro-benz-yloxy units. In one of the mol-ecules, the phenyl and chloro-phenyl rings are oriented at dihedral angles of 38.09 (6) and 42.15 (6)°, respectively, with respect to the benzotriazole ring [43.23 (6) and 29.80 (6)° in the ...

The asymmetric unit of the potential mono-Schiff base ligand title compound, C(13)H(10)N(4), contains two crystallographically independent mol-ecules, A and B. In mol-ecule A, the two rings are twisted from each other by 13.90 (18)°. By contrast, the dihedral angle between the two rings in mol-ecule B is 0.67 (19)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯N i...

In the asymmetric unit of the title compound, C(14)H(11)N(5)O(6), there are three crystallographically independent mol-ecules with similar conformations but some differences in bond angles. The mol-ecules are slightly twisted with the dihedral angles between the benzene rings being 10.02 (14), 8.41 (15) and 1.40 (14)°. In each mol-ecule, an intra-molecular N-H⋯O hydrogen bond generates an S(6) ...

The title compound, C(16)H(18)N(2)O, an N-benzyl-ideneaniline derivative with substituents on both aromatic rings, crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. Both mol-ecules exist in the E configuration. The dihedral angle between the two aromatic rings is 8.20 (5)° for mol-ecule A and 12.52 (6)° for mol-ecule B, and the imino C-N torsion angle (τ) is 7.1 (2)...

The title compound, C(14)H(18)N(2)O(3), crystallizes with two independent mol-ecules in the asymmetric unit, having closely comparable geometries. Both mol-ecules are essentially planar [maximum deviations from the mean plane of 0.069 (1) and 0.068 (1) Å for the two mol-ecules] and contain an intra-molecular N-H⋯O hydrogen bond which generates a ring with graph-set motif S(6). In the crystal, t...

In the title compound, C(21)H(18)N(6)·H(2)O, two 4,4'-dipyridyl-amine groups are linked by a methyl-ene C atom, which sits on a twofold axis. The lattice water mol-ecule is located slightly off a twofold axis, and is therefore disordered over two positions. In the crystal, the organic mol-ecules and the water mol-ecule are linked by O-H⋯N hydrogen bonds. The organic mol-ecules exhibit extensive...

The mol-ecules of the title compound, C(18)H(18)N(4), are linked by two different N-H⋯N(pyrid-yl) hydrogen bonds into a linear chain.