organic compounds
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In the title compound, C18H17FN2O, the imidazole ring makes dihedral angles of 68.81 (6) and 25.20 (8)° with the methoxyphenyl and fluorophenyl rings, respectively. The dihedral angle between the methoxyphenyl and fluorophenyl ring is 71.89 (6)°. In the crystal, molecules are linked into inversion dimers with an R22(8) graph-set motif by pairs of weak C—HF interactions.
organic compounds
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In the title compound, C23H16N2·0.5C6H6, the benzimidazole unit [maximum deviation = 0.0258 (6) Å] and the naphthalene ring system [maximum deviation = 0.0254 (6) Å] are both essentially planar and make a dihedral angle of 61.955 (17)°. The imidazole ring makes dihedral angle of 61.73 (4)° with the phenyl ring. An intramolecular C—HN hydrogen bond generates an S(6) ring motif. In the crystal, seven weak C—Hπ interactions involving the fused ring system, the benzene solvent molecule, the imidazole phenyl rings are observed, leading to a three-dimensional architecture.
organic compounds
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The title molecule, C13H10N2O, is essentially planar, the maximum deviation from the plane of the non-H atoms being 0.016 (2) Å. The imidazole ring makes a dihedral angle of 0.37 (13)° with the attached benzene ring. An intramolecular O—HN hydrogen bond generates an S(6) ring motif. In the crystal, molecules are linked through N—HO hydrogen bonds, forming chains propagating in [001]. The crystal packing also features four π–π stacking interactions involving the imidazole ring, fused benzene ring and attached benzene ring system [centroid–centroid distances = 3.6106 (17), 3.6108 (17), 3.6666 (17) and 3.6668 (17) Å].
organic compounds
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In the title compound, C23H24F2O3, the central pyran ring has a flat-boat conformation, whereas the two fused cyclohexenone rings adopt envelope conformations, with the C atom bearing the dimethyl substituent being the flap atom in each case. The pyran ring mean plane and the difluorophenyl ring are almost normal to each other, making a dihedral angle of 87.55 (4)°. In the crystal, molecules are linked by pairs of C—HO hydrogen bonds, forming inversion dimers with an R22(8) ring motif. The F atom at position 2 on the difluorophenyl ring is disordered over the 2- and 6-positions, and has a refined occupancy ratio of 0.932 (3):0.068 (3).
data reports
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The title compound, C26H18F3N3O2S, a 2-methoxy-substituted derivative, is closely related to its 4-methyl- and 4-chloro-substituted analogues and yet displays no structural relationships with them. The thiophene ring is disorder free and the –CF3 group exhibits disorder, respectively, in contrast and similar to that observed in the 4-methyl- and 4-chloro-substituted derivatives. The torsion angle which defines the twist of the thiophene ring is −69.6 (2)° (gauche) in the title compound, whereas it is anticlinal in the 4-methyl- and 4-chloro-substituted derivatives, with respective values of 99.9 (2) and 99.3 (2)°. The absence of disorder in the thiophene ring facilitates one of its ring C atoms to participate in the lone intermolecular C—HO hydrogen bond present in the crystal, leading to a characteristic C(5) chain graph-set motif linking molecules related through glides along [010]. An intramoleculr C—HN hydrogen bond also occurs.
data reports
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In the crystal structure of the title molecular salt, C6H9N2O2S+·H2PO4−, the sulfomylalinium cations and the dihydrogen phosphate anions form independent [100] chains through Ns—HO (s = sulfamoyl) and O—HO hydrogen bonds, respectively. The chains are cross-linked by Na—HO (a = amine) hydrogen bonds, generating (010) sheets. Two C—HO hydrogen bonds involving diametrically opposite C atoms in the benzene ring of the cation as donors form chains parallel to [202] in which P=O and P—OH groups are acceptors. Together, these interactions lead to a three-dimensional network.