1-(4-Nitrophenyl)-2-({4-phenyl-5-[(p-tolyloxy)methyl]-4H-1,2,4-triazol-3-yl}sulfanyl)acetamide

In the crystal structure of the title compound, C24H21N5O4S, centrosymmetric dimers with an R22(16) ring motif, lying in the (010) plane, are formed as a result of pairwise N—H...N hydrogen bonds. These dimers further interact through C—H...O and C—H...π interactions to construct a complex extended three-dimensional structure

Ethyl 3-amino-4-(4-chlorophenyl)-2-[(4-methoxyphenyl)carbamoyl]-6-phenylthieno[2,3-b]pyridine-5-carboxylate

The conformation of the title molecule, C30H24ClN3O4S, is partially determined by an intramolecular N—H...O hydrogen bond, forming an S(6) loop, and an N—H...π interaction involving the centroid of the 4-chlorophenyl ring. The thienopyridine bicyclic system is almost planar with an r.m.s. deviation of 0.019 Å. Its mean plane is inclined to the phenyl ring, the 4-chlorophenyl ring and the 4-methoxyphenyl ring by 36.19 (7), 81.67 (7) and 12.75 (7)°, respectively. In the crystal, molecules are linked by pairs of N—H...O hydrogen bonds, forming inversion dimers with an R22(20) ring motif. Within the dimers, which stack along the b-axis direction, there is a weak π–π interaction [centroid-to-centroid distance = 3.7936 (9) Å] involving inversion-related thiophene and pyridine rings

Methyl 2-{[(6S*,7R*,8S*)-7-acetyl-8-(4-chlorophenyl)-4-cyano-6-hydroxy-1,6-dimethyl-5,6,7,8-tetrahydroisoquinolin-3-yl]sulfanyl}acetate

In the title compound, C23H23ClN2O4S, the 4-chlorophenyl ring is inclined to the pyridine ring of the isoquinoline group by 71.86 (13)°. In the crystal, molecules are linked by pairs of O—H...O hydrogen bonds, forming inversion dimers, which stack along the b-axis direction. The methyl acetate group attached to the S atom is disordered over two sites in a 50:50 ratio, which appears to prevent close intermolecular contacts between the methyl groups

Ethyl {[5-acetyl-3-cyano-4-(4-methoxyphenyl)-6-methylpyridin-2-yl]sulfanyl}acetate

In the title molecule, C20H20N2O4S, the dihedral angle between the benzene and pyridine rings is 60.97 (7)°. In the crystal, molecules are linked by C—H...O hydrogen bonds and C—H...π interactions, forming a three-dimensional network

Ethyl 3-amino-2-cyano-4-(4-methoxyphenyl)-6- methylthieno[2,3-b]pyridine-5-carboxylate

In the title molecule, C19H17N3O3S, the bicyclic core is planar [maximum deviation = 0.0205 (1) Å] In the crystal, the molecules stack along the a-axis direction through π–π-stacking interactions between the bicyclic units with a small alternation in the interplanar distances along the stack. The stacks are held together by N—H...N and C—H...O hydrogen bonds. The carboethoxy substituent is disordered over several closely spaced sites and was modeled as having two-component disorder [occupancy ratio 0.548 (16):0.452 (16)]. The final refinement was as a two-component twin

5-Acetyl-3-amino-4-(4-methoxyphenyl)-6-methylthieno[2,3-b]pyridine-2-carbonitrile

The asymmetric unit of the title compound, C18H15N3O2S, comprises two independent molecules, which differ primarily in the orientations of the acetyl and p-anisyl substituents, each being rotated in opposite directions from the mean plane of the pyridine ring. The major feature of the molecular packing is the formation of a two-dimensional network parallel to the (110) plane, being mediated by amine-N—H...O(carbonyl) hydrogen bonds involving one amine H atom of each independent molecule. The remaining amine-H atoms form significantly weaker N—H...O(methoxy) interactions

Ethyl 13-(4-chlorophenyl)-11-methyl-6-oxo-5-phenyl-8-thia-3,4,5,10-tetraazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,10,12-pentaene-12-carboxylate

In the title molecule, C24H17ClN4O3S, the central tricyclic moiety is twisted slightly, as indicated by the dihedral angles of 4.86 (5) and 0.97 (6)°, respectively, between the five-membered ring and the C3N3 and pyridyl rings. Additionally, the chlorobenzene ring makes a dihedral angle of 65.80 (5)° with the pyridyl ring. Weak C—H...O, C—Cl...N [3.0239 (13) Å] and π–π stacking interactions [inter-centroid distance between thienyl rings = 3.6994 (8) Å, and between thienyl and pyridyl rings = 3.7074 (8) Å] contribute to the molecular packing. The ethyl group in the ester moiety is disordered over two sets of sites, with the major component having an occupancy of 0.567 (11)

1-[({5-[(4-Methylphenoxy)methyl]-4-phenyl-4H-1,2,4-triazol-3-yl}sulfanyl)methyl]-1H-benzo[d][1,2,3]triazole

The title molecule, C23H20N6OS, adopts a cup-shaped conformation with the planes of the two benzene rings and the benzotriazole unit close to being parallel. The crystal packing features C—H...π(ring) and offset π–π stacking interactions

Crystal structures of two hydrazide derivatives of mefenamic acid, 3-(2,3-dimethylanilino)-N '-[(E)-(furan-2-yl)methylidene]benzohydrazide and N '-[(E)-benzylidene]-2-(2,3-dimethylanilino)benzohydrazide

The conformation about the central benzene ring in the molecule of (I), C20H19N3O2, is partially determined by an intramolecular N-H center dot center dot center dot O hydrogen bond. In the crystal, chains parallel to the c axis are generated by intermolecular N-H center dot center dot center dot O hydrogen bonds with the chains assembled into a three-dimensional network structure by intermolecular C-H center dot center dot center dot O hydrogen bonds and C-H center dot center dot center dot pi(ring) interactions. The molecule of (II), C22H21N3O, differs from (I) only in the substituent at the hydrazide N atom where a phenylmethylene moiety for (II) is present instead of a furanmethylene moiety for (I). Hence, molecules of (I) and (II) show similarities in their molecular and crystal structures. The conformation of the central portion of the molecule of (II) is also therefore partially determined by an intramolecular N-H center dot center dot center dot O hydrogen bond and intermolecular N-H center dot center dot center dot O hydrogen bonds form chains parallel to the c axis. Likewise, the chains are connected into a three-dimensional network by C-H center dot center dot center dot O hydrogen bonds and C-H center dot center dot center dot pi(ring) interactions

Crystal structure and Hirshfeld surface analysis of 3-[(1E)-(4-{4-[(E)-(3-hydroxybenzylidene)amino]-phenoxy}phenylimino)methyl]phenol

In the crystal, the molecule of the title compound, C26H20N2O3, has crystallographically imposed twofold rotation symmetry. The crystal packing consists of layers parallel to the ab plane formed by O-H center dot center dot center dot N and C-H center dot center dot center dot O hydrogen bonds. Between the layers, C-H center dot center dot center dot pi interactions are observed