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(E)-3-(3,4-Di-fluoro-phen-yl)-1-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one.

ABSTRACT: In the title compound, C17H14F2O3, the dihedral angle between the benzene rings is 20.56 (8)° and the H atoms at the central propenone group are trans configured. One of the F atoms is disordered over two positions (occupancy ratio 0.57:0.43) and was refined using a split model. In the crystal, the molecules are linked into centrosymmetrical dimers and are further connected into a three-dimensional network via weak C-H⋯O interactions.

SUBMITTER: Zhu HP

PROVIDER: S-EPMC3685099 | biostudies-literature |

REPOSITORIES: biostudies-literature

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1-(3,4-Di-meth-oxy-phen-yl)-3-phenyl-prop-2-en-1-one.

Project description:In the title compound, C17H16O3, the dihedral angle between the mean planes of the benzene rings is 57.1 (1)°. The mean plane of the ketone group is twisted by 10.0 (5)° from that of the di-meth-oxy-phenyl ring. The two di-meth-oxy-phenyl groups are twisted slighly from the mean plane of the phenyl ring, with C-O-C-C torsion angles of 6.4 (2) and -7.9 (2)° [r.m.s. deviations = 0.15 (3) and 0.18 (3) Å for the two methoxy C atoms]. In the crystal, weak centroid-centroid π-π stacking inter-actions, with inter-centroid distances of 3.8939 (11) and 3.9430 (10) Å are observed.

| S-EPMC3998479 | biostudies-literature

(E)-1-(3,5-Di-meth-oxy-phen-yl)-3-(3-meth-oxy-phen-yl)prop-2-en-1-one.

Project description:In the title mol-ecule, C18H18O4, the C=C bond of the central enone group adopts a trans conformation. The relative conformation of the C=O and C=C bonds is s-cisoid. The dihedral angle between the planes of the benzene rings is 29.49 (12)°. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into chains along [010].

| S-EPMC3647862 | biostudies-literature

Crystal structure and Hirshfeld surface analysis of (2E)-3-(3-bromo-4-fluoro-phen-yl)-1-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one.

Project description:In the mol-ecule of the title compound, C17H14BrFO3, the aromatic rings are tilted with respect to the enone bridge by 13.63 (14) and 4.27 (15)°, and form a dihedral angle 17.91 (17)°. In the crystal, centrosymmetrically related mol-ecules are linked by pairs of C-H⋯O hydrogen bonds into dimeric units, forming rings of R22(14) graph-set motif. The dimers are further connected by weak C-H⋯O hydrogen inter-actions, forming layers parallel to (10). Hirshfeld surface analysis shows that van der Waals inter-actions constitute the major contribution to the inter-molecular inter-actions, with H⋯H contacts accounting for 29.7% of the surface.

| S-EPMC6072984 | biostudies-literature

Crystal structures of (2E)-1-(3-bromo-thio-phen-2-yl)-3-(2-meth-oxy-phen-yl)prop-2-en-1-one and (2E)-1-(3-bromo-thio-phen-2-yl)-3-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one.

Project description:In the mol-ecules of the title compounds, (2E)-1-(3-bromo-thio-phen-2-yl)-3-(2-meth-oxy-phen-yl)prop-2-en-1-one, C14H11BrO2S, (I), which crystallizes in the space group P-1 with four independent mol-ecules in the asymmetric unit (Z' = 8), and (2E)-1-(3-bromo-thio-phen-2-yl)-3-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one, C15H13BrO3S, (II), which crystallizes with Z' = 8 in the space group I2/a, the non-H atoms are nearly coplanar. The mol-ecules of (I) pack with inversion symmetry stacked diagonally along the a-axis direction. Weak C-H?Br intra-molecular inter-actions in each of the four mol-ecules in the asymmetric unit are observed. In (II), weak C-H?O, bifurcated three-center inter-molecular inter-actions forming dimers along with weak C-H?? and ?-? stacking inter-actions are observed, linking the mol-ecules into sheets along [001]. A weak C-H?Br intra-molecular inter-action is also present. There are no classical hydrogen bonds present in either structure.

| S-EPMC4571368 | biostudies-literature

(E)-3-[4-(Di-fluoro-meth-oxy)-3-hy-droxy-phen-yl]-1-phenyl-prop-2-en-1-one.

Project description:In the title compound, C16H12F2O3, the plane of the phenyl ring makes a dihedral angle of 3.22?(8)° with that of the benzene ring. The mol-ecule has an E conformation about the C=C bond. In the crystal, mol-ecules are linked via pairs of O-H?O hydrogen bonds, forming inversion dimers which are further consolidated by a pair of C-H?O hydrogen bonds. The dimers are linked via C-H?O hydrogen bonds, forming columns along the b-axis direction.

| S-EPMC3648329 | biostudies-literature

(Z)-3-(3,4-Dimeth-oxy-phen-yl)-3-(4-fluoro-phen-yl)-1-morpholino-prop-2-en-1-one.

Project description:The title compound, C(21)H(22)FNO(4), is an isomer of flumorph (systematic name 4-[3-(3,4-dimethoxyphenyl)-3-(4-fluorophenyl)-1-oxo-2-propenyl]morpholine), which was developed by Shenyang research institute of chemical industry and used as fungicide. The mol-ecule adopts a Z configuration about the C=C double bond. The dihedral angle between the two benzene rings is 73.45?(11)°.

| S-EPMC3151755 | biostudies-literature

(2E)-1-(3,5-Di-hydroxy-phen-yl)-3-(4-meth-oxy-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C16H14O4, the benzene rings are inclined to one another by 4.91?(7)°. The conformation about the C=O and C=C bonds is trans and cis, respectively. In the crystal, mol-ecules are linked by O-H?O hydrogen bonds, forming inversion dimers with an R 2 (2)(14) ring motif. The dimers are linked via O-H?O and C-H?O hydrogen bonds, forming undulating two-dimensional networks lying parallel to (10-1). These networks are linked by further C-H?O hydrogen bonds, forming a three-dimensional structure.

| S-EPMC4011220 | biostudies-literature

(2E)-1-(2,6-Dichloro-3-fluoro-phen-yl)-3-(4-meth-oxy-phen-yl)prop-2-en-1-one.

Project description:There are two independent mol-ecules in the asymmetric unit of the title compound, C(16)H(11)Cl(2)FO(2). The F atom equally populates both meta positions of the 6-dichloro-3-fluoro-phenyl ring in each mol-ecule, resulting in 0.5 occupancy for both the F and H atoms in these positions. The dihedral angle between the mean planes of the benzene rings are 77.5?(2) and 89.8?(8)°in the two mol-ecules. In the crystal, weak C-H?F and C-H?O inter-actions involving the half-occupied H and F atoms are observed. Weak ?-? stacking inter-actions [centroid-centroid distance = 3.150?(2)?Å] also contribute to the crystal stability.

| S-EPMC3344105 | biostudies-literature

Crystal structure and Hirshfeld surface analysis of (2<i>E</i>)-3-(4-chloro-3-fluoro-phen-yl)-1-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one.

Project description:The mol-ecular structure of the title compound, C17H14ClFO3, consists of a 4-chloro-3-fluoro-phenyl ring and a 3,4-di-meth-oxy-phenyl ring linked via a prop-2-en-1-one spacer. The mol-ecule has an E configuration about the C=C bond and the carbonyl group is syn with respect to the C=C bond. The F and H atoms at the meta positions of the 4-chloro-3-fluoro-phenyl ring are disordered over two orientations, with an occupancy ratio of 0.785?(3):0.215?(3). In the crystal, mol-ecules are linked via pairs of C-H?O inter-actions with an R 2 2(14) ring motif, forming inversion dimers. The dimers are linked into a tape structure running along [10] by a C-H?? inter-action. The inter-molecular contacts in the crystal were further analysed using Hirshfield surface analysis, which indicates that the most significant contacts are H?H (25.0%), followed by C?H/H?C (20.6%), O?H/H?O (15.6%), Cl?H/H?Cl (10.7%), F?H/H?F (10.4%), F?C/C?F (7.2%) and C?C (3.0%).

| S-EPMC6659344 | biostudies-literature

[2-(3,4-Di-meth-oxy-phen-yl)eth-yl](3-{N-[2-(3,4-di-meth-oxy-phen-yl)eth-yl]carbamo-yl}prop-yl)aza-nium chloride dihydrate.

Project description:The asymmetric unit of the title hydrated salt, C24H35N2O5 (+)·Cl(-)·2H2O, contains one organic cation that has its protonation site at the amine function, one chloride anion and two lattice water mol-ecules. In the crystal, one pair of lattice water mol-ecules and two chloride anions form a four-membered centrosymmetric hydrogen-bond cycle. In addition, O-H⋯O, N-H⋯O and N-H⋯Cl hydrogen bonds involving the N-H groups, the water mol-ecules and the C=O group are observed. As a result, a hydrogen-bonded layer parallel to (100) is formed. The thickness of such a layer corresponds to the length of the a axis [21.977 (3) Å].

| S-EPMC3998369 | biostudies-literature

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