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The title compound, C27H28N2O, is a lophine (2,4,5-triphenyl-1H-imidazole) derivative with an n-pentyl chain on the amine N atom and a 4-methoxy substituent on the benzene ring. The two phenyl and methoxybenzene rings are inclined to the imidazole ring at angles of 25.32 (7), 76.79 (5) and 35.42 (7)°, respectively, while the methoxy substituent lies close to the plane of its benzene ring, with a maximum deviation of 0.126 (3) Å for the methoxy C atom. In the crystal, inversion dimers linked by pairs of C—HO hydrogen bonds generate R22(22) loops. These dimers are stacked along the a-axis direction.
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In the title compound, C21H21BrClNO4, the dihydropyridine ring adopts a flattened boat conformation. The 3-bromo-5-chloro-2-hydroxyphenyl ring forms a dihedral angles of 84.44 (7)° with the dihydropyridine mean plane. The molecular conformation is stabilized by an intramolecular O—HO hydrogen bond, with an S(8) ring motif. In the crystal, O—HO and C—HO hydrogen bonds link the molecules, forming a three-dimensional network.
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In the title compound, C19H17NO2, the dihedral angle between the benzene ring and the naphthalene ring system is 9.72 (5)°, while the torsion angle of the C—N—C—C bridging group is 179.24 (17)°. The methyl group of the 1-phenylethanol moiety is disordered over two positions with a refined occupancy ratio of 0.775 (5):0.225 (5). The molecular conformation is stabilized by an intramolecular N—HO hydrogen bond, which generates an S(6) ring motif. In the crystal, molecules are linked by O—HO hydrogen bonds, forming zigzag chains propagating along the c-axis direction. Neighbouring chains are linked via C—HO interactions, forming a two-dimensional slab-like network parallel to the bc plane.
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The molecular conformation of the title compound, C13H8BrFN2O3, is essentially planar, with maximum deviations of 0.076 (1) and −0.080 (2) Å for the O atoms of the NO2 group. The molecular conformation is stabilized by an intramolecular O—HN hydrogen bond, forming an S(6) ring motif. In the crystal, pairs of molecules are linked via two pairs of C—HO hydrogen bonds, forming inversion dimers that enclose R22(7)R22(10)R22(7) ring motifs.
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In the title molecule, C14H15NO3, the ring system is essentially planar, with an r.m.s. deviation of 0.003 Å. The atoms of the ethane-1,2-diol group were refined as disordered over two sets of sites in a ratio of 0.815 (3):0.185 (3). The molecular conformation is stabilized in part by an intramolecular N—HO hydrogen bond, which forms an S(6) ring. In the crystal, molecules are connected by N—HO and O—HO hydrogen bonds, forming a two-dimensional network parallel to (100). The network also features weak C—HO hydrogen bonds. Weak C—Hπ interactions also observed.
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In the title compound, C16H14ClN3O2S, the dihedral angle between the benzene and pyrazole rings is 52.75 (2)°, while that between the pyrazole and 4-chlorophenyl rings is 54.0 (3)°. The terminal sulfonamide group adopts an approximately tetrahedral geometry about the S atom with a C—S—N angle of 108.33 (10)°. In the crystal, pairs of N—HN hydrogen bonds lead to the formation of inversion dimers. These dimers are linked via a second pair of N—HN hydrogen bonds and C—HO interactions, forming a two-dimensional network lying parallel to the bc plane. The two-dimensional networks are linked via C—HCl interactions, forming a three-dimensional structure.
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In the title compound, C20H14N2O, the phenyl ring is almost normal to the naphthalene ring system with a dihedral angle of 86.72 (9)°. The 4H-pyran ring fused with the naphthalene ring system has a boat conformation. In the crystal, molecules are linked into a helical supramolecular chain along the b axis via N—HN hydrogen bonds. The chains are consolidated into a three-dimensional architecture by C—Hπ interactions.
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In the title compound, C24H22N2O2, the central imidazole ring makes dihedral angles of 49.45 (8), 88.94 (9) and 19.43 (8)° with the benzene ring and the two phenyl rings, respectively. The dihedral angle between the phenyl rings is 77.86 (9)°, and they form dihedral angles of 49.06 (9) and 67.31 (8)° with the benzene ring. In the crystal, molecules are linked by O—HN hydrogen bonds, forming chains along the b axis. These chains are connected by C—HO hydrogen bonds, forming a two-dimensional network parallel to (100). In addition, C—Hπ interactions are also observed. The terminal C and O atoms of the ethanol group are disordered over two sets of sites with an occupancy ratio of 0.801 (5):0.199 (5).
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The title compound, C26H25N3, crystallizes with four independent molecules, 1–4, in the asymmetric unit of the triclinic unit cell. The allyl substituents on the imidazole rings adopt similar conformations in all four molecules. The imadazole and the 4-and 5-substituted phenyl rings of two pairs of molecules in the asymmetric unit stack parallel to (110). In contrast, the dimethylaniline systems in these pairs of molecules are almost normal to one another, with dihedral angles of 85.84 (10) and 85.65 (10)° between the benzene rings of the two dimethylaniline fragments of molecules 1 and 2, and 3 and 4, respectively. The crystal structure features an extensive series of C—Hπ interactions that link the molecules into undulating rows along the c axis. The crystal studied was a pseudo-merohedral twin with twin law [-100, 0-10, 111] and the BASF parameter refined to 0.513 (3).
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In the xanthene ring system in the title compound, C19H18O4, the 4H-pyran ring has a maximum deviation of 0.110 (2) Å from planarity and the cyclohexene ring exhibits a puckered conformation [puckering parameters QT = 0.452 (3) Å, θ = 57.0 (4) and φ = 131.7 (4)°]. The cyclohexene ring attached to the xanthene system adopts an envelope conformation, with the middle of the three methylene C atoms as the flap atom. In the crystal, O—HO and C—HO hydrogen bonds form infinite chains of R12(6) ring motifs along [100] with the xanthene groups arranged in an alternating zigzag manner.
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In the title compound, C19H16BrClO4, both the fused xanthene rings and one of the cyclohexane rings adopt envelope conformations, while the other cyclohexane ring is in a chair conformation. In the crystal, molecules are linked by C—HO hydrogen bonds, forming infinite chains running along [10-1] incorporating R22(16) ring motifs. In addition, C—Hπ interactions and weak π–π stacking interactions [centroid–centroid distance = 3.768 (3) Å] help to consolidate the packing.
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The title compound, C26H24Cl2N2, crystallizes with two independent molecules (1 and 2) in the asymmetric unit. In molecule 1, the two phenyl and 2,6-dichlorophenyl rings are inclined to the imidazole ring at angles of 74.12 (14), 26.13 (14) and 67.30 (14)°, respectively. In molecule 2, due to the different molecular environment in the crystal, the corresponding angles are different, viz. 71.72 (15), 16.14 (15) and 80.41 (15)°, respectively. In the crystal, molecules 1 and 2 are linked by C—HCl interactions, and inversion-related 2 molecules are linked by C—Hπ interactions. There are no other significant intermolecular interactions present.
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The title molecule, C17H11FN2O3, is nearly planar [maximum deviation = 0.197 (1) Å] and the molecular conformation is stabilized by an N—HO hydrogen bond forming an S(6) ring motif. The H atom of the intramolecular hydrogen bond was found to be disordered over two sites and thus both the hydroxy and keto tautomers are simultaneously present in the solid. Refinement of the occupancy of this site suggests that the hydroxy form is the major component [occupancy refined to 0.59 (3):0.41 (3)]. Bond lengths are also largely consistent with dominance of the hydroxy form. In the crystal, molecules are linked by C—HO hydrogen bonds, forming layers parallel to (101). π–π stacking interactions [centroid–centroid distances = 3.5649 (9) and 3.7579 (9) Å] inter-connect these layers.
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The title compound, C24H19ClN2, crystallizes with two independent molecules in the asymmetric unit. The prop-2-enyl substituents on the imidazole rings adopt similar conformations in the two molecules. The 4-and 5-substituted phenyl rings and the benzene ring make dihedral angles of 67.06 (8), 5.61 (8) and 41.09 (8)°, respectively, with the imadazole ring in one molecule and 71.53 (8), 28.85 (8) and 41.87 (8)°, respectively, in the other. The crystal structure features C—Hπ interactions and weak π–π stacking interactions [centroid–centroid distances = 3.6937 (10) and 4.0232 (10) Å] between the chlorophenyl rings, which form a three-dimensional supramolecular structure.
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In the title compound, C20H18ClN5S, the toluene and triazole rings are oriented almost perpendicular to each other, making a dihedral angle of 89.97 (9)°, whereas the dihedral angle between cholorophenyl and pyrazole rings is 54.57 (11)°. In the crystal, pairs of N—HN hydrogen bonds link the molecules into inversion dimers. Weaker C—HS and C—HCl interactions are also present.
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In the title compound, C24H20N2, one of the ring C atoms and one of the ring N atoms are disordered over two sets of sites in a 0.615 (3):0.385 (3) ratio. The two parts of the disordered imidazole ring adopt an envelope conformation, with the undisordered ring N atom as the flap, displaced by −0.118 (6) and 0.226 (7) Å, respectively, in the two disorder components from the plane through the other ring atoms. The crystal structure features C—HN hydrogen bonds and C—Hπ interactions, which lead to the formation of infinite chains along [010].
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In the title compound, C26H24N2O2, the two phenyl and the 2,5-dimethoxyphenyl rings are inclined to the imidazole ring at dihedral angles of 30.38 (8), 56.59 (9) and 73.11 (9)°, respectively. In the crystal, molecules are linked by pairs of C—HO interactions into centrosymmetric dimers with graph-set notation R22(8). C—Hπ interactions are also observed.
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The title compound, C25H20N2O2, crystallized with two molecules in the asymmetric unit, in one of which the atoms of the terminal propenyl group are disordered over two sets of sites, with a refined occupancy ratio of 0.870 (4):0.130 (4). The central imidazole ring makes dihedral angles of 25.51 (11), 40.73 (11) and 27.36 (11)° with the three pendant rings in one molecule and 22.56 (10), 60.72 (10) and 5.85 (10)° in the other. In the crystal, molecules are linked by N—HN and C—HO hydrogen bonds, forming a three-dimensional network. The crystal structure also features C—Hπ interactions and π–π stacking [centroid–centroid distances = 3.8834 (18) and 3.9621 (17) Å] interactions.
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In the title compound, C14H17NO3, the nine-membered 1H-indole ring system is essentially planar [maximum deviation = 0.019 (1) Å]. In the crystal, molecules are linked via N—HO hydrogen bonds, forming chains along [001]. These chains are linked via C—HO hydrogen bonds and C—Hπ interactions, forming a two-dimensional network lying parallel to the ac plane.
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In the title compound, C26H25ClN2, the phenyl rings and the 2-(4-chlorophenyl) group make dihedral angles of 30.03 (11), 67.49 (12) and 41.56 (11)°, respectively, with the imidazole ring. In the crystal, the molecules interact with each other via very weak C—Hπ contacts, forming layers parallel to (110).
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In the title compound, C14H13N3O2S, the dihedral angle between the thiophene and phenyl rings is 24.95 (8)°. The molecular structure is consolidated by intramolecular N—HO and C—HS interactions. The crystal structure features N—HN and N—HO hydrogen bonds forming centrosymmetric R22(12) dimers, which are linked into a two-dimensional network parallel to (011) with an S(6)R22S(6) motif. In addition, π–π stacking interactions [centroid–centroid distance = 3.7013 (12) Å] occur between the thiophene and phenyl rings of adjacent molecules.
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In the title compound, C13H15N3S, the 4,5-dihydro-3H-1,2,4-triazole ring is nearly planar [maximum deviation = 0.020 (1) Å], while the cyclohexane ring adopts a chair conformation. The dihedral angle between the 4,5-dihydro-3H-1,2,4-triazole ring and the phenyl ring is 74.68 (7)°. No specific intermolecular interactions are discerned in the crystal packing.
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In the title compound, C16H14O4, the benzene rings are inclined at a dihedral angle of 75.14 (9)°. The torsion angle of the bridging O—C—C—O group is −76.50 (11)°. In the crystal, molecules are linked by C—HO hydrogen bonds, forming C(6) chains along [100]. Furthermore, C—Hπ interactions and π–π stacking interactions [centroid–centroid distances = 3.6957 (7) and 3.6735 (8) Å] contribute to the stability of the crystal packing.
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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—Hπ interactions occur between inversion-related molecules.
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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—HO hydrogen bonds within these layers. Further weak C—HO hydrogen bonding occurs between the layers to form a three-dimensional network. A weak C—Hπ interaction is also observed.
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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—HO 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—HO hydrogen bonds, forming dimers with R22(8) motifs. These dimers are connected with the other molecules through the solvent molecules via O—HO hydrogen bonds, forming ribbons along the b-axis direction. C—Hπ interactions connect the ribbons. C—HO interactions also occur.
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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.
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The title compound, C21H21N3O2, adopts a J-shaped conformation which appears to be at least partially directed by a weak intramolecular C—HN hydrogen bond. In the crystal, molecules are linked by N—HO hydrogen bonds into R22(8) and R22(14) cyclic dimers, which form a chain running parallel to the b axis.
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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—HN 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—HO and C—HO 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.
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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 OS 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—HO, C—HO and C—HS hydrogen bonds form layers parallel to (010), with only C—HO-type short contacts between the molecules in adjacent layers.
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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—HO and O—HO hydrogen bonds, forming a two-dimensional network parallel to (110). A C—Hπ interaction occurs between these networks.
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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—Hπ interactions link inversion-related molecules into supramolecular dimers.
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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—HO and weak C—HO hydrogen bonds. C—Hπ interactions are also present.
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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—HN hydrogen bond. In the crystal, molecules are linked by N—HO hydrogen bonds, forming dimers with R22(8) motifs. Furthermore, these dimers connect to each other via C—HO and N—HO hydrogen bonds to form a three-dimensional network.
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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—HO hydrogen bond occurs. In the crystal, molecules are linked through pairs of N—HO hydrogen bonds, forming inversion dimers with an R22(10) ring motif. Two weak C—Hπ interactions are also observed.
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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—HO and C—HO hydrogen bonds occur. In the crystal, pairs of N—HO hydrogen bonds link adjacent molecules into inversion dimers and form an R12(6)R22(10)R12(6) ring motif through C—HO hydrogen bonds.
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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—HO and C—HN hydrogen bonds, weak π–π stacking interactions [centroid–centroid distance = 3.760 (2) Å] and C—Hπ contacts, forming a three-dimensional network.
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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—HO 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—HO and C—HN interactions.
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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—HN hydrogen bonds link the molecules into ribbons along [010].