In the title mol-ecule, C(25)H(26)N(4)O, the piperidine ring adopts a chair conformation, with the plane through the four coplanar atoms making dihedral angles of 84.76 (6), 82.28 (5) and 81.91 (6)° with the pyridine-ring and the phenyl rings at the 2 and 6 positions, respectively. The pyridine ring makes dihedral angles of 64.13 (8) and 10.75 (8)° with the phenyl rings at the 2 and 6 positions...

In the title compound, C19H18N4O4, the nitro-phenyl and phenyl rings are twisted by 67.0 (6) and 37.4 (4)°, respectively, with respect to the pyrazole ring plane [maximum deviation = 0.0042 (16) Å]. The dihedral angle between the mean planes of the phenyl rings is 59.3 (3)°. The amide group, with a C-N-C-C torsion angle of 177.54 (13)°, is twisted away from the plane of the pyrazole ring in an ...

In the title compound, C(9)H(7)N(3)O(3)S, the nitro and thia-zolidinone moieties are inclined with respect to the aromatic ring at dihedral angles of 9.57 (16) and 78.42 (4)°, respectively. In the crystal, N-H⋯O hydrogen bonding connects the mol-ecules along the c and a axes to form a two-dimensional polymeric network. A weak S⋯O inter-action [3.2443 (11) Å] and phenyl ring to phenyl ring off-s...

In the title mol-ecule, C(24)H(20)N(2)O(2)S, the thia-zole and amide groups are essentially coplanar. The thia-zole ring forms dihedral angles of 61.62 (4) and 26.75 (5)° with the benzene rings of the methoxy-phenyl and methyl-phenyl groups, respectively, and 33.69 (6)° with the phenyl ring. The crystal packing is stabilized by inter-molecular C-H⋯O hydrogen bonds, forming a three-dimensional n...

In the crystal structure of the title compound, C(20)H(16)ClN(5), the dihedral angle between the pyrazole ring and the phenyl ring is 54.7 (1)° and that between the pyrazole ring and the chloro-substituted phenyl ring is 72.4 (1)°. The methyl H atoms are disordered over two positions with site occupancy factors of ca 0.7 and 0.3. One amino H is disordered equally over two positions. In the crys...

In the title compound, C20H20N2O3, the central 2,5-di-hydro-1H-pyrrole ring [r.m.s. deviation = 0.014 (1) Å] is oriented at dihedral angles of 77.81 (6) and 25.33 (6)°, respectively, to the attached phenyl ring and the aniline phenyl ring. An intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, mol-ecules are linked through pairs of N-H⋯O hydrogen bonds, forming inversion dimers with an ...

In the title mol-ecule, C(24)H(22)N(2), four atoms (N-C-C-N) of the heterocyclic ring, with their attached H atoms, and all atoms of the methyl group, are disordered over two positions; the site-occupancy factor of the major component is 0.713 (6). The major disorder component of the heterocyclic ring adopts a half-chair conformation, with all substituents equatorial. The benzene ring adjacent ...

The title compound, C(23)H(20)N(4)O, is a heterocyclic phenyl-hydrazone Schiff base with a pyrazole moiety. In the crystal, a variety of inter-actions occur, including N-H⋯π and π-π stacking between the phenyl ring of the phenyl-hydrazinyl group and its symmetry-generated equivalent [centroid-centroid distance = 3.6512 (7) Å].

The title compound, C(17)H(15)N(3)O(3), was prepared from 1-(2-nitro-phen-yl)-3-phenyl-prop-2-en-1-one and hydrazine. The dihedral angle between the benzene and phenyl rings is 74.55 (2)°. The pyrazoline ring is in a slight envelope conformation with the C atom bonded to the phenyl ring forming the flap. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds connect mol-ecules into...

In the title compound, C(17)H(12)F(2)N(2)OS, the planar thia-zole ring (r.m.s. deviation = 0.012 Å) makes dihedral angles of 15.08 (9) and 81.81 (6)° with the 4-fluoro-phenyl and 2-fluoro-phenyl rings, respectively. The 2-fluoro-phenyl ring is disordered over two orientations with site-occupancy factors of 0.810 (3) and 0.190 (3). The structure contains inter-molecular C-H⋯O hydrogen bonds.