In the title compound, C15H10ClN3O2, the benzene ring is slightly twisted out of the plane of the 2,3-dihydro-1H-indole ring system (r.m.s. deviation = 0.007 Å), forming a dihedral angle of 7.4 (3)°. An intramolecular N—H⋯O hydrogen bond forms a six-membered ring. In the crystal, molecules are linked via N—H⋯O and C—H⋯O hydrogen bonds, forming layers alternately perpendicular to  and [0-11].
The molecular conformation of title compound, C12H11N3S, is almost planar [maximum deviation = 0.063 (2) Å]; an intramolecular C—H⋯N hydrogen bond is noted. In the crystal, molecules interact with each other via π–π stacking interactions between thiazole rings [centroid–centroid distance = 3.7475 (9) Å] and methyl-H⋯π(C6) interactions, forming columns along the a axis.
In the title compound, C13H13NO3S, the dihedral angle between the benzene rings is 64.15 (7)° and the C—S—N—C torsion angle is −57.18 (12)°. An intramolecular N—H⋯O hydrogen bond closes an S(5) ring. In the crystal, O—H⋯O hydrogen bonds link the molecules into C(8) chains propagating in . Weak C—H⋯π interactions are also observed.
The tricyclic aromatic ring system of the title compound, C15H9Cl2N, is essentially planar (r.m.s. deviation = 0.002 Å). The two Cl atoms lie slightly out of the plane of the carbazole ring system, with the C—Cl bonds forming angles of 1.23 (8) and 1.14 (8)° with the plane. The acetylene group has a syn orientation with respect to the ring system. In the crystal, no weak hydrogen bonds nor any π–π stacking interactions are observed.
In the title compound, C20H18Cl2N2O3, the dihedral angles between the central 2,5-dihydro-1H-pyrrole ring and the phenyl rings are 74.87 (9) and 29.09 (9)°. Intramolecular N—H⋯O and C—H⋯O hydrogen bonds occur. In the crystal, pairs of N—H⋯O hydrogen bonds link adjacent molecules into inversion dimers and form an R
2(6) ring motif through C—H⋯O hydrogen bonds.
The molecule of the title compound, C26H24N4O7S, adopts a trans conformation about the central N—N bond, presumably to minimize steric between the substituents on these two atoms. An intramolecular N—H⋯O hydrogen bond occurs. The phenyl ring is disordered over two sets of sites, with an occupancy ratio of 0.624 (8):0.376 (8). The azolidine ring is essentially planar [maximum deviation = 0.008 (5) Å] and makes a dihedral angle of 4.3 (2)° with the benzene ring and dihedral angles of 74.1 (3) and 69.1 (5)°, respectively, with the mean planes of the major and minor components of the disordered phenyl ring. The packing in the crystal is aided by the formation of several weak C—H⋯O and C—H⋯N interactions.
In the title compound, C6H4N4S3, the 1,3,4-thiadiazole ring is essentially planar, with an r.m.s. deviation of 0.001 Å. The two N—C—S—C torsion angles in the molecule are −23.41 (15) and 0.62 (14)°. One acetonitrile group is above the plane of the 1,3,4-thiadiazole ring and the other is below it, indicating syn and anti orientations. In the crystal, C—H⋯N hydrogen bonds link the molecules into ribbons along .
The central imidazole ring in the title compound, C28H30N2O2, makes dihedral angles of 28.42 (13), 71.22 (15) and 29.50 (14)°, respectively, with the phenyl rings in the 4- and 5-positions and the 3,4-dimethoxyphenyl group. In the crystal, molecules are linked by C—H⋯O and C—H⋯N hydrogen bonds, weak π–π stacking interactions [centroid–centroid distance = 3.760 (2) Å] and C—H⋯π contacts, forming a three-dimensional network.
In the title compound, C20H20N2O3, the central 2,5-dihydro-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 intramolecular N—H⋯O hydrogen bond occurs. In the crystal, molecules are linked through pairs of N—H⋯O hydrogen bonds, forming inversion dimers with an R
2(10) ring motif. Two weak C—H⋯π interactions are also observed.
The conformation adopted by the title compound, C20H21N3O3, in the crystal is ‘J’-shaped and appears to be at least partially directed by a weak intramolecular C—H⋯N hydrogen bond. In the crystal, molecules are linked by N—H⋯O hydrogen bonds, forming dimers with R
2(8) motifs. Furthermore, these dimers connect to each other via C—H⋯O and N—H⋯O hydrogen bonds to form a three-dimensional network.
The title molecule, C21H20N2O2, exists in the solid state in the ‘extended’ form. The crystal packing consists of ribbons of molecules extending parallel to c and associated via N—H⋯O and weak C—H⋯O hydrogen bonds. C—H⋯π interactions are also present.
The title compound, C16H23N3O3, contains two morpholine rings, each of which adopts a chair conformation. The molecular conformation is stabilized by an intramolecular O—H⋯N hydrogen bond, leading to a S(6) ring. In the crystal, molecules are linked into zigzag chains along the c-axis direction by C—H⋯O and C—H⋯π interactions.
In the title compound, C20H18N4O3, the dihedral angles between the central benzene ring and the 1H-1,2,3-triazole ring and the fused benzene ring are 65.34 (19) and 3.64 (18)°, respectively. The dioxole ring adopts a shallow envelope conformation, with the methylene C atom displaced by 0.156 (5) Å from the other four atoms (r.m.s. deviation = 0.007Å). In the crystal, the molecules are linked by C—H⋯O and C—H⋯N hydrogen bonds, generating a three-dimensional network.
The asymmetric unit of the title salt, C8H10N5
+·C7H7O3S−, consists of two amino[(1H-benzimidazol-2-yl)amino]methaniminium cations and two 4-methylbenzenesulfonate anions. The cations are each stabilized by intramolecular N—H⋯N hydrogen bonds between the free amino groups and the imine N atoms of the benzimidazole units, forming S(6) ring motifs. In the crystal, cations and anions are linked by N—H⋯O and C—H⋯O hydrogen bonds, forming a three-dimensional supramolecular framework. Two strong π–π stacking interactions [centroid–centroid distances = 3.4112 (14) and 3.4104 (14) Å] also occur between the centroids of the imidazole rings of like cations.
In the title compound, C20H17N3O4S, all non-H atoms, except those of the phenyl ring, are approximately coplanar [maximum deviation = 0.2214 (1) Å], and the dihedral angle between their best plane and the benzene ring is 53.13 (1)°. A short intramolecular O⋯S contact of 2.838 (1) Å is formed between the ester carbonyl O atom and the S atom of the thiazolidine ring. In the crystal, molecules associated via O—H⋯O, C—H⋯O and C—H⋯S hydrogen bonds form layers parallel to (010), with only C—H⋯O-type short contacts between the molecules in adjacent layers.
In the xanthenone system of the title compound, C23H20O4, the pyran ring has a maximum deviation of 0.111 (1) Å from planarity and the outer cyclohexene ring exhibits a puckered conformation. The three methylene C atoms of the cyclohexene ring bonded to the pyran unit are disordered over two sets of sites [occupancies = 0.570 (3) and 0.430 (3)]. In the crystal, molecules are linked by C—H⋯O and O—H⋯O hydrogen bonds, forming a two-dimensional network parallel to (110). A C—H⋯π interaction occurs between these networks.
In the title compound, C24H20BrN3S, the dihydrothiazole ring is approximately planar, with a maximum deviation of 0.008 (2) Å, and is twisted with respect to the 4-bromophenyl ring, the phenyl ring and methylphenyl ring, making dihedral angles of 47.96 (8), 59.52 (9) and 16.96 (9)°, respectively. In the crystal, weak C—H⋯π interactions link inversion-related molecules into supramolecular dimers.
The title compound, C21H21N3O2, adopts a J-shaped conformation which appears to be at least partially directed by a weak intramolecular C—H⋯N hydrogen bond. In the crystal, molecules are linked by N—H⋯O hydrogen bonds into R
2(8) and R
2(14) cyclic dimers, which form a chain running parallel to the b axis.
The title compound, C26H25BrN2, is isomorphous with the chloro derivative [2-(4-chlorophenyl)-1-pentyl-4,5-diphenyl-1H-imidazole; Mohamed et al. (2013 ▶). Acta Cryst. E69, o846–o847]. The two phenyl rings and the 4-bromophenyl ring are oriented at dihedral angles of 30.1 (2), 64.3 (3) and 42.0 (2)°, respectively, with respect to the imidazole ring. In the crystal, molecules stack in columns along the b-axis direction, however, there are no significant intermolecular interactions present.
The asymmetric unit of the title compound, C16H13N3O3·0.5C2H6OS, is composed of two independent pyrazolidine-3,5-dione molecules and one dimethyl sulfoxide solvent molecule. In each pyrazolidine-3,5-dione molecule, an intramolecular N—H⋯O hydrogen bond forms an S(5)S(6) motif. In the crystal, pairs of each independent pyrazolidine-3,5-dione molecule are linked by N—H⋯O hydrogen bonds, forming dimers with R
2(8) motifs. These dimers are connected with the other molecules through the solvent molecules via O—H⋯O hydrogen bonds, forming ribbons along the b-axis direction. C—H⋯π interactions connect the ribbons. C—H⋯O interactions also occur.
The asymmetric unit of the title compound, C21H19N3O3S, contains two independent molecules. In one molecule, the 1,3-thiazolidine ring forms dihedral angles of 86.19 (8) and 8.37 (8)° with the phenyl and benzene rings, respectively. The corresponding dihedral angles in the other molecule are 69.60 (7) and 14.08 (7)°. The dihedral angle between the phenyl and benzene rings is 84.70 (8)° in one molecule and 69.62 (8)° in the other. In the crystal, molecules pack in layers approximately parallel to (10-2). There are weak C—H⋯O hydrogen bonds within these layers. Further weak C—H⋯O hydrogen bonding occurs between the layers to form a three-dimensional network. A weak C—H⋯π interaction is also observed.
The asymmetric unit of the title compound, C11H11NO4, contains two molecules, A and B, with different conformations: in molecule A, the norborne and carboxylic acid groups lie to the same side of the heterocycle, whereas in a molecule B, they lie on opposite sides. In the crystal, the A molecules form R
2(8) carboxylic acid inversion dimers, linked by pairs of O—H⋯O hydrogen bonds. The B molecules link to one of the ketone O atoms of the A molecule by an O—H⋯O interaction, resulting in tetramers (two A and two B molecules). The tetramers are linked by weak C—H⋯O interactions, generating a three-dimensional network.
In the title compound, C24H21N3S, the thiazole ring makes dihedral angles of 52.03 (6), 62.63 (6) and 12.35 (6)°, respectively, with the two phenyl rings and the benzene ring. In the crystal, weak C—H⋯π interactions occur between inversion-related molecules.
The asymmetric unit of the title salt, C16H21N2O2
−, contains half of the whole ion pair, which has crystallographic mirror symmetry. Two F atoms related by the mirror plane are disordered over two sites of equal occupancy. The dihedral angle between the central ring and the furan ring is 59.3 ()°. In the crystal, the anions and cations are linked through C—H⋯F interactions, forming a three-dimensional network.
The title compound, C23H24FN3O, crystallizes with two independent molecules (I and II) in the asymmetric unit. These pairs of molecules are linked to each other as N—H⋯O dimers with an R
2(10) motif. Furthermore, the crystal structure also exhibits C—H⋯π interactions. The atoms of the ethyl group in molecule I are disordered over two sites with an occupancy ratio of 0.817 (6):0.183 (6).