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(E)-1-(2,4-Dihy-droxy-phen-yl)-3-(4-hydroxy-phen-yl)prop-2-en-1-one monohydrate.

ABSTRACT: In the title compound, C(15)H(12)O(4)·H(2)O, the two benzene rings are not coplanar, making a dihedral angle of 7.24 (16)°. An intra-molecular hy-droxy-carbonyl O-H⋯O hydrogen bond occurs. In the crystal, four inter-molecular O-H⋯O hydrogen bonds involving the hy-droxy residues, the carbonyl group and the water mol-ecule lead to the formation of a three-dimensional network. The supra-molecular structure is further stabilized by weak C-H⋯O inter-actions.

SUBMITTER: Wang JG

PROVIDER: S-EPMC3052009 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(2,4-Dihy-droxy-6-meth-oxy-phen-yl)(3,5-dihy-droxy-phen-yl)methanone monohydrate.

Project description:The title benzophenone compound, C(14)H(12)O(6)·H(2)O, was isolated from the bark of Garcinia hombroniana Pierre (Guttiferae). The mol-ecule is twisted, the dihedral angle between the two benzene rings being 59.13?(7)°. The meth-oxy group is approximately coplanar with the attached benzene ring, with a C-O-C-C torsion angle of 1.91?(18)°. The water mol-ecule is disordered over two positions in a 0.555?(19):0.445?(19) ratio. An intra-molecular O-H?O hydrogen bond generates an S(6) ring motif. The crystal structure is stabilized by inter-molecular O-H?O hydrogen bonds. These inter-actions link the mol-ecules into sheets parallel to the ac plane. The sheets are stacked along the b axis by ?-? inter-actions, with centroid-centroid distances of 3.6219?(7)?Å. A weak O-H?? inter-action was also noted.

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1-(2,4-Dichloro-phen-yl)-3-(4-methyl-phen-yl)prop-2-en-1-one.

Project description:The mol-ecule of the title compound, C(16)H(12)Cl(2)O, adopts an E configuration. The dihedral angle between the two benzene rings is 42.09 (5)°. In the crystal structure, mol-ecules are linked into a three-dimensional framework by weak C-H⋯O inter-actions and by C-H⋯π inter-actions involving the methyl-phenyl ring.

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3-[(E)-3-(2,4-Dichloro-phen-yl)prop-2-en-oyl]-4-hy-droxy-2H-chromen-2-one.

Project description:In the title compound, C(18)H(10)Cl(2)O(4), the chromen-2-one ring system is almost planar [maximum deviation = 0.028?(1)?Å] and is inclined at an angle of 16.35?(4)° with respect to the benzene ring. The C=C bond has an E configuration. The mol-ecular conformation is stabilized by an almost symmetric intra-molecular O?H?O hydrogen bond and a C-H?O inter-action, both of which form S(6) ring motifs. In the crystal structure, mol-ecules are linked into sheets lying parallel to (100) via inter-molecular C-H?O hydrogen bonds. The crystal packing is further consolidated by ?-? stacking inter-actions [centroid-to-centroid separation = 3.6615?(6)?Å].

| S-EPMC3009251 | biostudies-literature

(E)-3-(2-Chloro-phen-yl)-1-(2,4-dichloro-phen-yl)prop-2-en-1-one.

Project description:In the title chalcone derivative, C(15)H(9)Cl(3)O, the dihedral angle between the 2-chloro-phenyl and 2,4-dichloro-phenyl rings is 41.79?(14)°. Weak C-H?O and C-H?Cl intra-molecular inter-actions involving the enone unit generate S(5) ring motifs. In the crystal structure, the mol-ecules are arranged in a head-to-tail manner along the a axis. These chains are stacked along the b axis.

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(2E)-1-(4-Amino-phen-yl)-3-(2,4-dichloro-phen-yl)prop-2-en-1-one.

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The chalcone derivative (E)-1-(4-fluoro-phen-yl)-3-(4-hy-droxy-3-meth-oxy-phen-yl)prop-2-en-1-one monohydrate.

Project description:The title compound, C16H13FO3·H2O, has a cis disposition of the carbonyl and olefin bonds about the enone single bond. The arene rings are inclined to one another by 10.05 (6) Å. In the crystal, mol-ecules are linked via O-H⋯O hydrogen bonds involving the water mol-ecules, forming loops which are, in turn, linked via O-H.·O and C-H⋯F hydrogen bonds, forming sheets lying parallel to (103). These networks are linked via π-π inter-actions [centroid-centroid distance = 3.641 (1) Å] involving inversion-related 4-fluoro-phenyl and 4-hy-droxy-3-meth-oxy-phenyl rings.

| S-EPMC3629610 | biostudies-literature

(E)-1-(3,5-Difluoro-phen-yl)-3-(2,4-dimeth-oxy-phen-yl)prop-2-en-1-one.

Project description:The title compound, C(17)H(14)F(2)O(3), is approximately planar, the dihedral angle between the rings being 5.46?(2)°. The H atoms of the central propenone group are trans. The crystal structure is stabilized by inter-molecular C-H?F hydrogen bonds.

| S-EPMC2983274 | biostudies-literature

(2E)-1-(2,4-Dichloro-phen-yl)-3-(3,4,5-trimeth-oxy-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(18)H(16)Cl(2)O(4), the dihedral angle between the benzene rings is 82.40 (4)°. The meth-oxy groups at both meta positions of the 3,4,5-trimeth-oxy-phenyl ring are slightly twisted from the aromatic ring [C-O-C-C = -166.60 (8) and -6.18 (13)°], whereas the meth-oxy group at the para position is almost perpendicular [C-O-C-C = 112.08 (9)°]. The ketone O atom is connected to the 2,4-dichloro-phenyl group through a C(ar)-C(ar)-C-O (ar = aromatic) torsion angle of -116.43 (9)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds into infinite chains along the b axis. The crystal structure also features C-H⋯π inter-actions.

| S-EPMC3344577 | biostudies-literature

(2E)-1-(3,4-Dichloro-phen-yl)-3-(2-hy-droxy-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(15)H(10)Cl(2)O(2), the dihedral angle between the mean planes of the two benzene rings is 7.7?(6)°. The crystal packing is influenced by O-H?O hydrogen bonds, which form chains along [010]. Weak ?-? stacking inter-actions [centroid-centroid distance = 3.6697?(13)?Å] are observed, which may contribute to the crystal packing stability.

| S-EPMC3275046 | biostudies-literature

(2E)-3-(4-Chloro-phen-yl)-1-(4-hy-droxy-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(15)H(11)ClO(2), the dihedral angle between the mean planes of the chloro-benzene and hy-droxy-benzene rings is 6.5 (6)°. The mean plane of the prop-2-en-1-one group makes an angle of 18.0 (1)° with the hy-droxy-phenyl ring and 11.5 (1)° with the chloro-phenyl ring. The crystal packing is stabilized by inter-molecular O-H⋯O hydrogen bonds, weak C-H⋯O, C-H⋯π and π-π stacking inter-actions [centroid-centroid distances = 3.7771 (7) and 3.6917 (7) Å].

| S-EPMC3099984 | biostudies-literature

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