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In the title compound, C16H11F3O, the dihedral angle between the two benzene rings is 4.66 (12)°. In the crystal structure, the molecules are interlinked into columns along the b axis by intermolecular C—H...O interactions and short O...O contacts [2.525 (8) Å]. The crystal structure is further stabilized by weak intermolecular C—H...π interactions. The linkage between the two phenyl rings is disordered over two positions in approximately a 0.6:0.4 ratio. [ABSTRACT FROM AUTHOR]

The title molecule, C10H10O4, possesses a crystallographically imposed centre of symmetry. The acetic acid unit is almost perpendicular to the benzene ring, making a dihedral angle of 84.46 (6)°. In the crystal structure, molecules are linked by intermolecular O—H...O hydrogen bonds into chains running along the [101] direction, and these chains are stacked along the b axis. [ABSTRACT FROM AUTHOR]

In the title compound, C24H19NO3, the six-membered ring with the methyl substituents is in an envelope conformation. The crystal structure is stabilized by C—H...O, C—H...π and π–π interactions; the latter involve centroid–centroid distances of 3.680 (1) and 3.802 (1) Å. [ABSTRACT FROM AUTHOR]

The title compound, C13H14O4, known as 8-methyl­eugenitin, is a chromone isolated from the leaves of Mellaleuca cajuputi Powell. The chromone unit is essentially planar. The methyl and hydroxyl groups lie in the plane of the benzene ring while the meth­oxy substituent is perpendicular to it. An intra­molecular O—H⋯O hydrogen bond generates an S(6) ring motif. The crystal structure is stabilized by intra­molecular O—H⋯O and weak C—H⋯O hydrogen bonds, together with C—H⋯π and π–π inter­actions. Mol­ecules are arranged in an anti­parallel fashion into columns along the [100] direction. [ABSTRACT FROM AUTHOR]

The title compound, C15H11ClO2, is almost planar and adopts an E configuration. The dihedral angle between the two benzene rings is 10.76 (6)°. An intra­molecular O—H⋯O hydrogen bond generates an S(6) ring motif. Mol­ecules are arranged in layers approximately parallel to the (204) plane and weak π–π inter­actions are observed between the layers. [ABSTRACT FROM AUTHOR]

Mol­ecules of the title compound, C30H22Br2O2, lie across crystallographic inversion centres. The dihedral angle between the phenyl and bromo­benzene rings is 23.88 (8)°. Weak C—H⋯O inter­actions link the mol­ecules into ribbons along the a axis. [ABSTRACT FROM AUTHOR]

The title compound, C18H18O4, was obtained as by-product in a search for nonlinear optical chalcones. In the molecule, the two benzene rings make a dihedral angle of 37.20 (8)°. The crystal packing exhibits weak intermolecular C—H...O interactions. [ABSTRACT FROM AUTHOR]

In the title molecule, C15H9BrClFO, the dihedral angle between the two benzene rings is 22.7 (1)°. The crystal structure is stabilized by intermolecular C—H...F interactions and short Br...Cl contacts [Br...Cl = 3.579 (1) Å]. The compound can potentially exhibit second-order nonlinear optical properties as it crystallizes in a noncentrosymmetric space group. [ABSTRACT FROM AUTHOR]

The title compound, C19H21NO3, is a chalcone derivative which crystallizes with four independent molecules in the asymmetric unit. The dihedral angles between the two benzene rings are in the range 31.73 (14)–38.62 (16)° in the four molecules. In all the molecules, the two methoxy groups deviate slightly from the mean planes of the attached benzene rings. One methyl of the dimethylamino group is coplanar while the other is not coplanar with the attached benzene rings in two of the molecules, whereas in the other two molecules both methyl groups of the dimethylamino group are twisted out of the planes of the attached benzene rings. Weak C—H...O intramolecular interactions involving the enone unit generate S(5) ring motifs. In the crystal structure, the molecules are arranged into chains along the c axis. These chains are stacked along the b axis. The crystal structure is stabilized by weak C—H...O intra- and intermolecular interactions, together with C—H...π interactions. [ABSTRACT FROM AUTHOR]

In the title compound, C17H16N2O3, the dihedral angle between the benzene rings is 1.56 (7)°. The nitro group is coplanar with the attached benzene ring while the dimethylamino group is twisted slightly away from the attached benzene ring. A weak intramolecular C—H...O hydrogen bond is present in the molecular structure. The crystal structure is stabilized by intermolecular C—H...O hydrogen bonds, forming chains along the [011] direction. [ABSTRACT FROM AUTHOR]

In the title compound, C19H20O5, the dihedral angle between the benzene rings is 5.92 (6)°. The molecules are linked by two pairs of C—H...O hydrogen bonds into a centrosymmetric dimer of R21(6) ring motif. In addition, the crystal structure is stabilized by C—H...π interactions. [ABSTRACT FROM AUTHOR]

In the title mol­ecule, C17H15ClO3, the dihedral angle between the benzene rings is 8.0 (1)°. The crystal structure is stabilized by weak C—H⋯O and C—H⋯π inter­actions which link mol­ecules into a three-dimensional network. [ABSTRACT FROM AUTHOR]

The title compound, C17H16BrNO, adopts an E configuration. The dihedral angle between the two benzene rings is 49.17 (13)°. Intra­molecular C—H⋯O weak inter­actions are present in the crystal structure. The mol­ecules are arranged in double layers parallel to the bc plane. These double layers are stacked in an anti-parallel fashion along the a axis. The crystal structure is stabilized by intra­molecular C—H⋯O weak inter­actions. C—H⋯π inter­action are also observed in the crystal packing. [ABSTRACT FROM AUTHOR]

In the title compound, 2C14H14NO+·I3−·I−, the cations are almost planar and exist in E configurations. The dihedral angles between the pyridinium and benzene rings in the two unique cations are 2.6 (2) and 2.8 (2)°. O—H⋯I hydrogen bonds and weak C—H⋯I inter­actions are observed in the crystal structure. The cations are arranged in a zigzag fashion along the c axis and are packed in an anti­parallel manner into sheets parallel to the bc plane. These sheets are inter­connected via O—H⋯I hydrogen bonds and weak C—H⋯I inter­actions to form a three-dimensional network. [ABSTRACT FROM AUTHOR]

In the title compound, C17H16O3, the dihedral angle between the benzene rings is 10.05 (9)°. Inter­molecular C—H⋯O hydrogen bonds link the mol­ecules to form chains along the b axis. The crystal structure is further stabilized by C—H⋯π inter­actions. [ABSTRACT FROM AUTHOR]

In the title compound, C15H10BrClO, the dihedral angle between the benzene rings is 46.70 (5)°. The crystal structure is stabilized by Br⋯Br and Cl⋯Cl contacts and C—H⋯π inter­actions. [ABSTRACT FROM AUTHOR]

In the title compound, C15H16NO2+·I−, H2O, the cation is almost planar and exists in an E configuration. The dihedral angle between the pyridinium and benzene rings is 7.05 (5)°. In the crystal structure, water mol­ecules are linked to the cations and anions by O—H⋯O and O—H⋯I hydrogen bonds. These, together with weak C—H⋯O inter­actions, form a three-dimensional network. C—H⋯π inter­actions involving the benzene rings further stabilize the structure. [ABSTRACT FROM AUTHOR]

There are two crystallographically independent ion pairs in the asymmetric unit of the title compound, C15H16NO+·C6H4ClO3S−. Both cations adopt an E configuration with respect to the C=C bond. The dihedral angle between the pyridinium and benzene rings of the two cations are 6.0 (3) and 2.6 (2)°. In the crystal structure, independent cations and anions are individually linked into alternate layers parallel to the ab plane via weak C—H⋯O inter­actions; these layers are inter­connected through weak intra- and inter­molecular C—H⋯O inter­actions, forming a three-dimensional network. C—H⋯π inter­actions involving the benzene and pyridinium rings also help to stabilize the crystal structure. [ABSTRACT FROM AUTHOR]

The title compound, C13H8BrNO3S, crystallizes with two mol­ecules in the asymmetric unit. All bond lengths and angles in both mol­ecules show normal values. In the crystal structure, the mol­ecules are stabilized by inter­molecular C—H⋯O hydrogen bonds and short Br⋯O inter­actions. [ABSTRACT FROM AUTHOR]

In the title compound, C14H14NO+·C7H7SO4−, the cation is almost planar and adopts an E configuration. The pyridinium and benzene rings of the cation make dihedral angles of 88.01 (8) and 87.37 (8)°, respectively, with the benzene ring of the anion. In the crystal structure, the cations and anions are arranged in layers parallel to the (011) plane. The cations and anions are linked through O—H⋯O and C—H⋯O hydrogen bonds, and C—H⋯π inter­actions. [ABSTRACT FROM AUTHOR]

In the title compound, C7H6ClFN2S, the dihedral angle between the benzene ring and the thio­urea group is 63.62 (3)°. The crystal structure is stabilized by inter­molecular N—H⋯Cl/S hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the title compound, C18H17FO4, the dihedral angle between the benzene rings is 12.42 (2)°. The crystal structure is stabilized by C—H⋯O, C—H⋯π and π–π inter­actions. [ABSTRACT FROM AUTHOR]

In the title compound, C15H9BrCl2, the dihedral angle between the two benzene rings is 42.39 (4)°. The crystal structure is stabilized by short inter­molecular Br⋯Br contacts. [ABSTRACT FROM AUTHOR]

In the title compound, C18H17BrO4, the dihedral angle between the benzene rings is 9.60 (16)°. The crystal structure is stabilized by inter­molecular C—H⋯O inter­actions and Br⋯O short contacts. [ABSTRACT FROM AUTHOR]

In the title compound, C8H10N2OS, the dihedral angle between the benzene ring and the thio­urea group is 59.23 (4)°. Mol­ecules are linked via N—H⋯O/S hydrogen bonds, forming a two-dimensional network. [ABSTRACT FROM AUTHOR]

In the title compound, C18H17NO6, the dihedral angle between the benzene rings is 43.45 (5)°. There are two intra­molecular hydrogen bonds in the mol­ecule and the structure is stabilized by inter­molecular C—H⋯O hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the title compound, C16H12Cl2O2, the dihedral angle between the benzene rings is 44.59 (3)°. In the crystal structure, the mol­ecules form layers parallel to the ac plane which propagate down the b axis and which are stabilized by short Cl⋯Cl inter­actions. [ABSTRACT FROM AUTHOR]

In the title molecule, C22H19Cl3O5S, the methoxy group is slightly twisted from the plane of the attached benzene ring by a torsion angle of 18.96 (14)°. In the crystal structure, molecules are linked by intermolecular C—H...O interactions and short Cl...O contacts of 3.0170 (8) Å. [ABSTRACT FROM AUTHOR]

The title compound, C22H20N2O4, is a Schiff base ligand. The dihedral angles between the central and two outer benzene rings are 2.20 (12) and 58.29 (12)°. Two O—H...N intramolecular hydrogen bonds involving the two hydroxy groups generate S(6) ring motifs. In the crystal structure, molecules are stacked approximately along the a axis and are linked by weak intermolecular C—H...O interactions. The crystal structure is stabilized by intramolecular O—H...N hydrogen bonds, weak C—H...O intermolecular interactions and C—H...π interactions. [ABSTRACT FROM AUTHOR]

In the title mol­ecule, C15H9Cl2NO3, the nitro group is twisted slightly away from the attached benzene ring; the molecule is otherwise essentially planar. C—H⋯Cl, C—H⋯O and π–π inter­actions link the mol­ecules into a three-dimensional framework. [ABSTRACT FROM AUTHOR]

In the title compound, C19H18NO+·I−·0.5I2, the I2 mol­ecule lies on a crystallographic center of symmetry and the cation is essentially planar and in an E configuration. The dihedral angle between the quinolinium and benzene ring systems is 4.06 (10)°. In the crystal structure, the cations are packed in an anti­parallel fashion along the a axis and weak C—H⋯O and C—H⋯I inter­actions link the components of the structure into a three-dimensional network. Weak C—H⋯π inter­actions are also present. [ABSTRACT FROM AUTHOR]

In the title mol­ecule, C17H14Cl2O3, the meth­oxy groups are almost coplanar with the attached benzene ring. The mol­ecules are linked via inter­molecular C—H⋯O inter­actions into wave-like chains along the b axis. [ABSTRACT FROM AUTHOR]

In the title compound, C20H10Cl2O2, the naphthoquinone unit is essentially planar. The dihedral angle between the naphthalene system and the benzene ring is 11.74 (6)°. The mol­ecules are linked by inter­molecular C—H⋯Cl inter­actions, forming a chain along the b axis. In addition, the crystal structure is stabilized by weak inter­molecular π–π inter­actions. [ABSTRACT FROM AUTHOR]

The crystal structure of the title compound, C22H20N2O2, is stabilized by C—H⋯O, C—H⋯π and π–π inter­actions. The central benzene ring forms dihedral angles of 58.55 (6) and 4.02 (6)° with the terminal benzene rings. [ABSTRACT FROM AUTHOR]

The title mol­ecule, C19H13BrO, has an s– cis conformation for the ketone system. The dihedral angle between the benzene and naphthalene ring systems is 50.14 (3)°. C—H⋯Br inter­actions link the mol­ecules into chains along the c axis, which are inter­linked via C—H⋯π inter­actions. [ABSTRACT FROM AUTHOR]

In the title compound, [Sn(C6H5)3(C7H5N2O4)], the nitro and amino groups are coplanar with the attached benzene ring. The mol­ecules are linked by inter­molecular N—H⋯O inter­actions, forming one-dimensional chains along [010]. In addition, the crystal structure is further stabilized by inter­molecular C—H⋯π and π–π inter­actions. [ABSTRACT FROM AUTHOR]

In the title compound, C16H19NO3S, the dihedral angle between the benzene and phenyl rings is 54.17 (6)°. In the crystal structure, the mol­ecules are linked into a two-dimensional network parallel to the (001) plane by N—H⋯O and O—H⋯O hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the title compound, C7H6N4O4, the mol­ecule is essentially planar and the nitro groups are nearly coplanar with the benzene ring. The crystal structure is stabilized by inter­molecular C—H⋯O, N—H⋯O and C—H⋯N inter­actions, as well as by short O⋯O and O⋯N contacts. [ABSTRACT FROM AUTHOR]

The title mol­ecule, C18H17ClO4, is slightly distorted from planarity. The dihedral angle between the two benzene rings is 11.6 (2)°. The crystal packing is stabilized by C—H⋯π inter­actions and van der Waals forces. [ABSTRACT FROM AUTHOR]

In the title compound, C18H16Cl2O4, the dihedral angle between the benzene rings is 65.9 (1)°. The crystal packing is stabilized by inter­molecular C—H⋯O inter­actions. [ABSTRACT FROM AUTHOR]