54 research outputs found
2-(4-Bromophenyl)-2-oxoethyl anthracene-9-carboxylate
In the title compound, C23H15BrO3, the anthracene ring system is essentially planar [maximum deviation = 0.29 (2) Å] and makes a dihedral angle of 5.74 (8)° with the mean plane of the bromo-substituted benzene ring. An intramolecular C—H⋯O hydrogen bond generates an S(9) ring motif. In the crystal, molecules are linked by C—H⋯O interactions, forming a two-dimensional network parallel to the ac plane. π–π stacking interactions are observed between benzene rings [centroid–centroid distances = 3.5949 (14) and 3.5960 (13) Å]
2-(4-Chlorophenyl)-2-oxoethyl 4-methylbenzoate
In the title compound, C16H13ClO3, the dihedral angle between the benzene rings is 80.74 (8)°. In the crystal, C—H⋯O hydrogen bonds link the molecules to form C(11) chains propagating in [010]
2-(4-Fluorophenyl)-2-oxoethyl 4-methoxybenzoate
In the title compound, C16H13FO4, the dihedral angle between the benzene rings is 84.28 (8)°. In the crystal, C—H⋯F and C—H⋯O hydrogen bonds link the molecules to form a three-dimensional network. The crystal structure is consolidated by C—H⋯π interactions and short F⋯F contacts [2.7748 (14) Å] also occur
2-(4-Bromophenyl)-2-oxoethyl 4-hydroxybenzoate
In the title compound, C15H11BrO4, the dihedral angle between the aromatic rings is 66.77 (8)°. In the crystal, O—H⋯O, C—H⋯Br and C—H⋯O hydrogen bonds link the molecules, forming layers lying parallel to (101). The crystal packing is further consolidated by C—H⋯π interactions and π–π stacking interactions [centroid–centroid distance = 3.5476 (7) Å]
2-(4-Chlorophenyl)-2-oxoethyl 4-hydroxybenzoate
The title compound, C15H11ClO4, consists of a chlorobenzene ring and a phenol ring which are linked together by a 1,4-dioxo-2-oxabutane-1,4-diyl group. The dihedral angle between the chlorobenzene and phenol rings is 65.70 (11)°. In the crystal, intermolecular O—H⋯O hydrogen bonds link the molecules into chains along [010]
Ethyl 1-(2,4-dichlorobenzyl)-4-oxo-7-trifluoromethyl-1,4-dihydroquinoline-3-carboxylate
In the title compound, C20H14Cl2F3NO3, the trifluromethyl group is disordered over two sets of sites in a 0.784 (10):0.216 (10) ratio. The quinoline ring system is essentially planar with a maximum deviation of 0.058 (2) Å for the N atom and forms dihedral angles of 89.23 (11) and 8.13 (17)°, respectively with the mean planes of the benzene ring and the carboxylate group. In the crystal, pairs of weak C—H⋯O and C—H⋯F hydrogen bonds link molecules into centrosymmetric dimers. The crystal structure is further stabilized by weak π–π [centroid–centroid distance = 3.624 (2) Å] interactions
2-(4-Bromophenyl)-2-oxoethyl 4-methylbenzoate
The title compound, C16H13BrO3, consists of a toluene ring and a bromobenzene ring which are linked together by a 2-oxopropyl acetate group. The dihedral angle formed between the toluene and bromobenzene rings is 80.70 (7)°. In the crystal, intermolecular C—H⋯O hydrogen bonds link the molecules into a three-dimensional network
2-(4-Chlorophenyl)-2-oxoethyl 2-methoxybenzoate
In the title compound, C16H13ClO4, the two benzene rings make a dihedral angle of 86.38 (8)°. In the crystal, intermolecular C—H⋯O hydrogen bonds link the molecules to form columns along the a axis. The molecules are also stabilized by a π–π stacking interaction, with a centroid–centroid distance of 3.7793 (10) Å between the inversion-related benzene rings
2-(4-Chlorophenyl)-2-oxoethyl 2,4-difluorobenzoate
The asymmetric unit of title compound, C15H9ClF2O3, consists of two crystallographically independent molecules. The dihedral angle between the two terminal benzene rings in one molecule is 7.92 (14)°, while that in the other molecule is 73.50 (16)°. In the crystal, molecules are stacked into columns along the b axis by intermolecular C—H⋯O hydrogen bonds. A π–π interaction with a centroid-to-centroid distance of 3.747 (2) Å further stabilizes the crystal structure
2-(4-Bromophenyl)-2-oxoethyl 4-methoxybenzoate
In the title compound, C16H13BrO4, the benzene rings are almost perpendicular to each other, making a dihedral angle of 84.07 (8)°. In the crystal, the molecules are linked into chains along the a axis via intermolecular C—H⋯O hydrogen bonds. A C—H⋯π interaction is also observed
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