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Crystal structure of 3-(4-methyl-phen-yl)-1-phenyl-5-[(E)-2-phenyl-ethen-yl]-1H-pyrazole.

ABSTRACT: In the title compound, C24H20N2, the dihedral angles between the pyrazole ring and the pendant phenyl, toluoyl and phenyl-ethenyl rings are 41.50 (8), 4.41 (8) and 31.07 (8)°, respectively. In the crystal, inversion dimers linked by a π-π stacking inter-actions between the phenyl-ethenyl rings are observed [centroid-centroid separation = 3.5857 (9) Å].

SUBMITTER: Adam F

PROVIDER: S-EPMC4719956 | biostudies-literature |

REPOSITORIES: biostudies-literature

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3-(4-Chloro-phen-yl)-1-[(E)-1-(4-chloro-phen-yl)-2-(4-methyl-phenyl-sulfan-yl)ethen-yl]-4-(4-methyl-phenyl-sulfan-yl)-1H-pyrazole.

Project description:In the title compound, C(31)H(24)Cl(2)N(2)S(2), the pyrazole ring adopts planar conformation with a maximum deviation of 0.002?(2)?Å. The chloro-phenyl rings are twisted out of the plane of the pyrazole ring by 75.1?(1) and 39.5?(1)°. The crystal packing is controlled by weak intermolecular C-H?? interactions.

| S-EPMC2971206 | biostudies-literature

Crystal structure of 1-methyl-2-[(E)-2-(4-methyl-phen-yl)ethen-yl]-4-nitro-1H-imidazole.

Project description:In the title mol-ecule, C13H13N3O2, the planes of the benzene and imidazole rings form a dihedral angle of 7.72 (5)°. In the crystal, mol-ecules are linked by weak C-H⋯N and C-H⋯O hydrogen bonds, forming layers parallel to (100). A weak C-H⋯π inter-action connects these layers into a three-dimensional network. A π-π stacking inter-action, with a centroid-centroid distance of 3.5373 (9) Å, is also observed.

| S-EPMC4186084 | biostudies-literature

Crystal structure of 3-methyl-1-phenyl-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carbaldehyde.

Project description:In the title compound, C15H13N3O, the pyrrolyl and phenyl rings make dihedral angles of 58.99 (5) and 34.95 (5)°, respectively, with the central pyrazole ring. In the crystal, weak, pairwise C-H⋯O inter-actions across centers of symmetry form dimers, which are further associated into corrugated sheets running approximately parallel to (100) via weak C-H⋯N inter-actions.

| S-EPMC4257204 | biostudies-literature

Crystal structure of 1-{3-(4-methyl-phen-yl)-5-[(E)-2-phenyl-ethen-yl]-4,5-di-hydro-1H-pyrazol-1-yl}ethan-1-one.

Project description:The title compound, C20H20N2O, was studied as a part of our work on pyrazoline derivatives. It represents a trans-isomer. The central pyrazoline ring adopts an envelope conformation with the asymmetric C atom having the largest deviation of 0.107 (1) Å from the mean plane. It forms dihedral angles of 6.2 (1) and 86.4 (1)° with the adjacent p-tolyl and styrene groups, respectively. In the crystal, C-H⋯O inter-actions link mol-ecules into infinite chains along the c axis.

| S-EPMC4719997 | biostudies-literature

Crystal structure of (E)-4-{[2-(2,4-di-nitro-phen-yl)hydrazin-1-yl-idene]meth-yl}-3-methyl-1-phenyl-5-(1H-pyrrol-1-yl)-1H-pyrazole.

Project description:The title compound, C21H17N7O4, is in an 'extended' conformation aided by an intra-molecular N-H?O hydrogen bond. The pyrazole ring makes dihedral angles of 29.17?(6), 65.47?(4) and 9.91?(7)°, respectively, with the phenyl, pyrrole and benzene rings. In the crystal, mol-ecules are connected by pairs of N-H?O and C-H?O hydrogen bonds, forming inversion dimers which associate into ribbons running along the b axis through complementary C-H?O inter-actions.

| S-EPMC4257438 | biostudies-literature

3,5-Bis(4-methyl-phen-yl)-1-phenyl-4,5-dihydro-1H-pyrazole.

Project description:In the title compound, C(23)H(22)N(2), the dihedral angle between the methyl-benzene groups is 77.62 (6)°, and the dihedral angle between the envelope-shaped pyrazole ring [in which one C atom displaced by 0.109 (1) Å from the mean plane of the other four atoms] and the phenyl ring is 17.57 (7)°. The dihedral angles between the phenyl ring and the two methyl-benzene rings are 13.24 (6) and 81.02 (7)°. In the crystal, weak C-H⋯π inter-actions link the mol-ecules.

| S-EPMC3099927 | biostudies-literature

Crystal structure of (2-methyl-1-phenyl-sulfon-yl-1H-indol-3-yl)(phen-yl)methanone.

Project description:In the title compound, C22H17NO3S, the sulfonyl-bound phenyl ring is almost orthogonal to the indole ring system, making a dihedral angle of 84.89?(7)°. The carbonyl-bound phenyl ring forms a dihedral angle of 57.32?(5)° with the indole ring system. The two phenyl rings are inclined at 52.68?(7)°. The S atom has a distorted tetra-hedral configuration. In the crystal, weak C-H?O inter-actions link the mol-ecules, forming a helical chain along the b-axis direction.

| S-EPMC4384539 | biostudies-literature

Crystal structure of 5-[4-(di-methyl-amino)-phen-yl]-3-(4-methyl-phen-yl)-4,5-di-hydro-1H-pyrazole-1-carbaldehyde.

Project description:The title compound, C19H21N3O, comprises a central pyrazole ring which is N-connected to an aldehyde group and C-connected twice to substituted benzene rings. The pyrazole ring is twisted on the C-C single bond, and the least-squares plane through this ring forms dihedral angles of 82.44 (5) and 4.52 (5)° with the (di-methyl-amino)-benzene and p-tolyl rings, respectively. In the crystal, weak C-H⋯O hydrogen bonds link mol-ecules into supra-molecular tubes along the b axis.

| S-EPMC4719963 | biostudies-literature

Crystal structure of 4-phenyl-1-{2-[(2,4,6-tri-methyl-phen-yl)selan-yl]phen-yl}-1H-1,2,3-triazole.

Project description:In the title compound, C23H21N3Se, the C-bound phenyl ring is almost coplanar with the central five-membered ring [dihedral angle = 2.84 (10)°], but the N-bound benzene ring is inclined [dihedral angle = 47.52 (10)°]. The dihedral angle between the Se-bound rings is 69.24 (9)°. An intra-molecular Se⋯N inter-action of 3.0248 (15) Å is noted. In the crystal, C-H⋯π inter-actions connect mol-ecules into double layers that stack along the a axis with no directional inter-actions between them.

| S-EPMC4350715 | biostudies-literature

Ethyl 1-(4-methyl-phen-yl)-5-phenyl-4-phenyl-sulfon-yl-1H-pyrazole-3-carboxyl-ate.

Project description:The title compound, C(25)H(22)N(2)O(4)S, features a tetra-substituted pyrazole ring. The dihedral angles formed between the five-membered ring (r.m.s. deviation = 0.007?Å) and the N- and C-bound phenyl rings are 48.10?(7) and 72.01?(7) °, respectively, indicating that the planes through the residues are significantly twisted from the plane through the heterocycle. The ester-CO(2) group is also twisted out of this plane, with an O-C-C-N torsion angle of -29.04?(11)°. The sulfonyl-O atoms lie to one side of the pyrazole plane and the sulfonyl-phenyl ring to the other. The dihedral angle between the two ring planes is 70.63?(7) °. Supra-molecular arrays are formed in the crystal structure sustained by C-H?O and C-H??(pyrazole) inter-actions and methyl-C-H??(N-bound benzene) contacts.

| S-EPMC3201465 | biostudies-literature

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