In the title compound, C(13)H(14)N(2), the dihedral angle between the aromatic rings is 48.1 (1)° and the bridging C-N-C bond angle is 127.24 (12)°. In the crystal, intermolecular N-H⋯N hydrogen bonding about a center of inversion generates a hydrogen-bonded dimer.

In the title compound, C(15)H(10)ClNO(5), the dihedral angle between the aromatic rings is 87.99 (5)°. The O-C-C-O torsion angle between the two carbonyl units is -119.03 (16)°. The crystal structure is stabilized by a weak intermolecular C-H⋯O hydrogen bond.

In the title compound, C(16)H(19)NO(2)S, the mol-ecule is twisted about the S-N bond, the C-S(O(2))-N(H)-C torsion angle being 53.9 (2)°. The dihedral angle between the two benzene rings is 82.1 (1)°. The crystal structure features inversion-related dimers linked by N-H⋯O hydrogen bonds.

The aromatic rings attached to the azomethine double bond in the title compound, C(14)H(17)N(3)O, are trans to each other [C-C=N-C torsion angle = 179.5 (1)°], and they are approximately coplanar [dihedral angle between the five- and six-membered rings = 13.7 (1)°].

In the title compound, C(15)H(18)N(2)O(4), the aromatic rings on the azomethine double bond are trans to each other [C-C=N-C torsion angle = -178.29 (12)°] and they are approximately coplanar, the dihedral angle between them being 5.0 (1)°.

In the title compound, C(11)H(10)BrNO(2), the dihedral angle between the benzene and cyclo-propane ring planes is 49.4 (3)°. The C-C-N-O torsion angle is -175.1 (3)°, which indicates that the C=N double bond is in the E configuration.

In the title mol-ecule, C(14)H(20)N(2)O, the piperidine ring has a chair conformation and its N atom is close to planar (bond-angle sum = 357.5°). The dihedral angle between the amide group and the aromatic ring is 47.43 (19)°. In the crystal, mol-ecules are linked into [100] C(4) chains by N-H⋯O hydrogen bonds.

In the title compound, C(22)H(17)N(3), the 1H-indole unit is essentially planar, with a dihedral angle of 0.95 (10)° between the pyrrole ring and the fused benzene ring. The dihedral angle between the two phenyl rings is 65.09 (10)°. In the crystal, an inter-molecular N-H⋯N hydrogen bond forms an infinite chain in the b-axis direction.

In the title compound, C(7)H(6)ClNO(3)S, the nitro group forms a dihedral angle of 2.7 (4)° with the benzene ring. The bond-angle sum at the S atom is 303.7°. In the crystal, mol-ecules are linked by weak C-H⋯O hydrogen bonds, forming layers lying parallel to (-101).

The mol-ecule of the title compound, C(18)H(17)N(7)S, is non-planar, with a dihedral angle of 71.4 (4)° between the two triazole rings, and an angle of 15.5 (3)° between the two phenyl rings. An intra-molecular N-H⋯S hydrogen bond forms a five-membered ring.