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4-(4-Fluoro-phen-yl)-1-phenyl-3-(pyridin-4-yl)-1H-pyrazol-5-amine.

ABSTRACT: In the title compound, C(20)H(15)FN(4), the pyrazole ring forms dihedral angles of 43.51?(6), 39.95?(6) and 32.23?(6)° with the directly attached 4-fluoro-phenyl, pyridine and phenyl rings, respectively. The crystal packing is stabilized by inter-molecular N-H?N and N-H?F hydrogen bonds.

SUBMITTER: Abu Thaher B

PROVIDER: S-EPMC3295426 | biostudies-literature | 2012 Mar

REPOSITORIES: biostudies-literature

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4-(4-Fluoro-phen-yl)-1-phenyl-3-(pyridin-4-yl)-1H-pyrazol-5-amine.

Abu Thaher Bassam B Koch Pierre P Schollmeyer Dieter D Laufer Stefan S

Acta crystallographica. Section E, Structure reports online 20120210 Pt 3

In the title compound, C(20)H(15)FN(4), the pyrazole ring forms dihedral angles of 43.51 (6), 39.95 (6) and 32.23 (6)° with the directly attached 4-fluoro-phenyl, pyridine and phenyl rings, respectively. The crystal packing is stabilized by inter-molecular N-H⋯N and N-H⋯F hydrogen bonds. ...[more]

PMID: 22412537

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4-(4-Fluoro-phen-yl)-1-(4-nitro-phen-yl)-3-(pyridin-4-yl)-1H-pyrazol-5-amine.

Project description:In the crystal structure of the title compound, C(20)H(14)FN(5)O(2), the pyrazole ring forms dihedral angles of 59.3?(2), 25.6?(2) and 46.0?(2)° with the directly attached 4-fluoro-phenyl, pyridine and nitro-phenyl rings, respectively. The crystal packing is characterized by inter-molecular N-H?N and N-H?O hydrogen bonds.

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4-(4-Fluoro-phen-yl)-3-(pyridin-4-yl)-1-(2,4,6-trichloro-phen-yl)-1H-pyrazol-5-amine.

Project description:In the title compound, C(20)H(12)Cl(3)FN(4), the pyrazole ring forms dihedral angles of 47.51 (9), 47.37 (9) and 74.37 (9)° with the directly attached 4-fluoro-phenyl, pyridine and 2,4,6-trichloro-phenyl rings, respectively. Only one of the two amino H atoms is involved in hydrogen bonding. The crystal packing is characterized by N-H⋯N hydrogen bonds, which result in infinite chains parallel to the c axis.

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1-(4-Methoxy-phen-yl)-3-phenyl-1H-pyrazol-5-amine.

Project description:The synthesis of the title compound, C(16)H(15)N(3)O, is regiospecific and single-crystal X-ray diffraction provides the only means of unambiguous structural analysis, with the benzene ring bonded to the imine C atom. The phenyl ring and the essentially planar (r.m.s. deviation 0.0354 Å) methoxy-benzene group are rotated by 29.41 (5) and 37.01 (5)°, respectively, from the central pyrazole ring. An inter-molecular N-H⋯N hydrogen bond links symmetry-related mol-ecules into a C(5) chain, which runs parallel to the b axis.

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Project description:In the crystal structure of the title compound, C(21)H(14)FN(5), the pyrazole ring forms dihedral angles of 38.0 (1), 40.0 (1) and 28.5 (1)° with the directly attached 4-fluoro-phenyl, pyridine and benzonitrile rings, respectively. The crystal packing is characterized by N-H⋯N hydrogen bonds, which result in a two-dimensional network parallel to the ac-plane.

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1-(4-Fluoro-phen-yl)-3-methyl-4-phenyl-sulfanyl-1H-pyrazol-5(4H)-one.

Project description:The title compound, C(16)H(13)FN(2)OS, has undergone enol-to-keto tautomerism during the crystallization process. The 1H-pyrazole-5-one ring [maximum deviation = 0.0198?(11)?Å] is inclined at angles of 33.10?(5) and 79.57?(5)° with respect to the fluoro-phenyl [maximum deviation = 0.0090?(12)?Å] and phenyl-thiol [maximum deviation = 0.0229?(3)?Å] rings attached to it. In the crystal, neighbouring mol-ecules are linked into inversion dimers, generating R(2) (2)(8) ring motifs. These dimers are further linked into two-dimensional arrays parallel to the bc plane via inter-molecular N-H?O, C-H?F and C-H?O hydrogen bonds. The crystal is further stabilized by weak ?-? [centroid-centroid distance = 3.6921?(7)?Å] and C-H?? inter-actions.

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Project description:In the title compound, C25H20FN3S, two independent mol-ecules comprise the asymmetric unit, which differ in the relative orientation of the fluoro-benzene ring with respect to the pyrazole ring to which it is attached [dihedral angles = 89.39?(17) and 75.23?(16)° in the two mol-ecules]. Each pyrazole ring adopts an envelope conformation with the methine C atom being the flap atom. There are additional twists in the mol-ecules, e.g. between the five-membered rings [dihedral angles = 18.23?(16) and 17.84?(16)°] and between the thia-zole and attached phenyl ring [10.26?(16) and 20.87?(15)°]. Overall, each mol-ecule has a T-shape. In the crystal, mol-ecules are connected into a three-dimensional architecture by weak C-H?? inter-actions.

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N-Phenyl-6-(1H-pyrazol-1-yl)pyridazin-3-amine.

Project description:The mol-ecule of title compound, C(13)H(11)N(5), is essentially planar (r.m.s. deviation = 0.0440?Å) and an intra-molecular C-H?N hydrogen bond generates an S(6) motif. In the crystal, mol-ecules are connected into chains by inter-molecular N-H?N and C-H?N hydrogen bonds. In addition, ?-? stacking inter-actions are observed between the pyrazole and pyridazine rings [inter-planar distance = 3.6859?(10)?Å].

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2-[3-(4-Chloro-phen-yl)-5-(4-fluoro-phenyl)-4,5-dihydro-1H-pyrazol-1-yl]-4-phenyl-1,3-thia-zole.

Project description:In the title compound, C24H17ClFN3S, the pyrazole ring is almost planar (r.m.s. deviation = 0.030?Å). With the exception of the methine-bound benzene ring, which forms a dihedral angle of 85.77?(13)° with the pyrazole ring, the remaining non-C atoms lie in an approximate plane (r.m.s. deviation = 0.084?Å) so that overall the mol-ecule has a T-shape. In the crystal, centrosymmetrically related mol-ecules are connected via ?-? inter-actions between pyrazole rings [centroid-centroid distance = 3.5370?(15)?Å] and these stack along the a axis with no specific inter-actions between them.

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2-(4-Fluoro-phen-yl)-1-phenyl-1H-benzimidazole.

Project description:In the title mol-ecule, C(19)H(13)FN(2), the benzimidazole unit is close to planar [maximum deviation = 0.0342 (9) Å] and forms dihedral angles of 58.94 (3) and 51.43 (3)° with the phenyl and fluoro-benzene rings, respectively; the dihedral angle between the phenyl and fluoro-benzene rings is 60.17 (6)°. In the crystal, three C-H⋯F hydrogen bonds and two weak C-H⋯π inter-actions involving the fused benzene ring lead to a three-dimensional architecture.

| S-EPMC3435725 | biostudies-literature

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