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1-(2-Methyl-6-nitro-4-phenyl-3-quinol-yl)ethanone.

ABSTRACT: In the title compound, C(18)H(14)N(2)O(3), the quinoline ring system is almost planar [maximum deviation = 0.013 (2) Å] and forms a dihedral angle of 60.36 (7)° with the benzene ring. The nitro group is slightly twisted from the attached quinoline ring system, forming a dihedral angle of 9.06 (19)°. In the crystal packing, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains propagating in [010].

SUBMITTER: Loh WS

PROVIDER: S-EPMC2979093 | biostudies-literature |

REPOSITORIES: biostudies-literature

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1-(6-Chloro-2-methyl-4-phenyl-3-quinol-yl)ethanone.

Project description:In the title compound, C(18)H(14)ClNO, the quinoline ring system is approximately planar with a maximum devation of 0.022?(1)?Å and forms a dihedral angle of 62.70?(3)° with the phenyl ring. In the crystal, pairs of C-H?O inter-molecular hydrogen bonds link neighbouring mol-ecules into inversion dimers, forming R(2) (2)(14) ring motifs. These inversion dimers are stacked along the b axis. The structure is further stabilized by C-H?? inter-actions.

| S-EPMC2971397 | biostudies-literature

1-{6-Chloro-2-[(2-chloro-8-methyl-3-quinol-yl)meth-oxy]-4-phenyl-quinolin-3-yl}ethanone.

Project description:In the title mol-ecule, C(28)H(20)Cl(2)N(2)O(2), the dihedral angle between the 2-chloro-quinoline and 6-chloro-quinoline rings is 7.55?(6)°. The dihedral angle between the phenyl ring and its attached quinoline ring is 62.59?(4)°. In the crystal, aromatic ?-? stacking inter-actions [centroid-centroid distances = 3.771?(3) and 3.612?(3)?Å] help to establish the packing.

| S-EPMC3007527 | biostudies-literature

1-[6-Chloro-4-(2-chloro-phen-yl)-2-methyl-3-quinol-yl]ethanone.

Project description:The title compound, C(18)H(13)Cl(2)NO, features an essentially planar quinoline ring system (r.m.s. deviation = 0.023 Å) with the acetyl [C-C-C-O torsion angle = -78.27 (17)°] and benzene [C-C-C-C torsion angle = 110.11 (14)°] substituents being twisted out of the plane; the dihedral angle formed between the mean planes of these two substituents is 58.01 (8)°. The acetyl O and benzene-bound Cl atoms lie to opposite sides of the mol-ecule. Centrosymmetric aggregates mediated by pairs of C-H⋯O contacts are found in the crystal structure, and these are connected into a two-dimensional array in the (01) plane via Cl⋯O [3.0508 (11) Å] inter-actions.

| S-EPMC3007567 | biostudies-literature

1-(4-Methyl-phen-yl)-2-(phenyl-sulfon-yl)ethanone.

Project description:In the title compound, C(15)H(14)O(3)S, the benzene and phenyl rings make a dihedral angle of 33.56 (16)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds into a layer parallel to the ab plane.

| S-EPMC3343995 | biostudies-literature

N-(2-Nitro-phenyl-sulfon-yl)-N-(4-nitro-phenyl-sulfon-yl)methyl-amine.

Project description:In the crystal structure of the title compound, C(13)H(11)N(3)O(8)S(2), mol-ecules are linked by inter-molecular C-H?O hydrogen bonds into zigzag chains running parallel to the c axis. Centrosymmetrically related chains are further stabilized by aromatic ?-? stacking inter-actions [centroid-centroid distance = 3.749?(3)?Å] involving adjacent 4-nitro-benzene rings. Intra-molecular C-H?O hydrogen bonds are also present.

| S-EPMC2959441 | biostudies-literature

1-[3-(2-Nitro-phen-yl)-5-phenyl-2-pyrazolin-1-yl]ethanone.

Project description:The title compound, C(17)H(15)N(3)O(3), was prepared from 1-(2-nitro-phen-yl)-3-phenyl-prop-2-en-1-one and hydrazine. The dihedral angle between the benzene and phenyl rings is 74.55?(2)°. The pyrazoline ring is in a slight envelope conformation with the C atom bonded to the phenyl ring forming the flap. In the crystal structure, weak inter-molecular C-H?O hydrogen bonds connect mol-ecules into chains along [100].

| S-EPMC3006741 | biostudies-literature

(E)-1-(3-Nitro-phen-yl)ethanone (2-methyl-phen-yl)hydrazone.

Project description:In the title Schiff base compound, C(15)H(15)N(3)O(2), the azomethine double bond adopts an E configuration. The dihedral angle between the two aromatic rings is 13.4?(12)°. In the crystal, mol-ecules are arranged in wave-like layers parallel to (100) without any classical hydrogen bonding.

| S-EPMC3201279 | biostudies-literature

(E)-1-(3-Methoxy-phen-yl)ethanone 4-nitro-phenyl-hydrazone.

Project description:Crystals of the title compound, C(15)H(15)N(3)O(3), were obtained from a condensation reaction of 4-nitro-phenyl-hydrazine and 3-methoxy-acetophenone. In the crystal structure, the methoxy-phenyl ring is twisted slightly with respect to the nitro-phenyl-hydrazine plane, making a dihedral angle of 14.81?(8)°. The nitro and meth-oxy groups are each coplanar with the attached benzene rings. The nitro-phenyl and methoxy-phenyl groups are located on opposite sides of the C=N double bond, indicating an E configuration of the mol-ecule. Adjacent mol-ecules are linked together via N-H?O hydrogen bonding, forming chains along the [101] direction.

| S-EPMC2961743 | biostudies-literature

(Z)-1-(4-Methyl-phen-yl)-2-(phenyl-sulfon-yl)ethanone oxime.

Project description:The mol-ecule of the title compound, C(15)H(15)NO(3)S, has a twisted U-shaped conformation: the twist occurs at the central C-S(=O)(2)-C-C-C unit and the benzene ring makes a dihedral angle of 28.74?(7)° with the phenyl ring. The S-C-C=N torsion angle is -88.95?(13)°. In the crystal, inversion dimers linked by pairs of O-H?N hydrogen bonds generate R(2) (2)(6) loops, and C-H?O hydrogen bonds connect the dimers into a three-dimensional network.

| S-EPMC3414300 | biostudies-literature

(1E)-1-(3-Bromo-phen-yl)ethanone 2,4-di-nitro-phenyl-hydrazone.

Project description:The title compound, C(14)H(11)BrN(4)O(4), contains 3-bromo-phenyl and 2,4-dinitro-phenyl groups on opposite sides of a hydrazone unit and crystallizes with two mol-ecules in the asymmetric unit. The dihedral angles between the two ring systems in each mol-ecule are 2.0 (1) and 2.5 (4)°. Weak C-H⋯O hydrogen bonds and weak π-π stacking inter-actions [centroid-centroid distance = 3.7269 (14) Å] help to establish the packing. Intra-molecular N-H⋯O hydrogen bonds are also observed. On one of the rings, the Br atom is disordered over two equivalent positions of the phenyl ring [occupancy ratio 0.8734 (10):0.1266 (10).

| S-EPMC3008979 | biostudies-literature

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