organic compounds
Open access
In the title compound, C14H12ClNO4S, the dihedral angle between the chloro- and methoxy-substituted benzene rings is 87.40 (1)°. In the crystal, adjacent molecules form inversion-related dimers through strong N—HO hydrogen bonds, generating R22(8) loops. The dimers are further connected through two C—HO interactions that form C(11) chains and R22(14) loops. Aromatic π–π stacking interactions [centroid–centroid separation = 3.8574 (1) Å] are also observed.
organic compounds
Open access
In the title compound, C15H15NO4S, the dihedral angle between the methyl- and methoxy-substituted benzene rings is 88.99 (12)°. An intramolecular C—HO hydrogen bond occurs. In the crystal, adjacent molecules form inversion-related dimers through strong N—HO hydrogen bonds, generating R22(8) loops. The dimers are further connected through C—HO interactions that form C(8) chains parallel to (001). Molecules are also connected through other C—HO hydrogen bonds along the b axis, forming additional C(8) chains. Two aromatic π–π stacking interactions [centroid–centroid separations = 3.6150 (1) and 3.6837 (1) Å] generate a three-dimensional architecture.
organic compounds
Open access
In the title compound, C15H15NO4S, the dihedral angle between the benzene rings is 88.87 (1)°. In the crystal, adjacent molecules form inversion dimers through pairs of strong N—HO hydrogen bonds, generating R22(8) loops. Two C—Hπ interactions and an aromatic π–π interaction [centroid–centroid separation = 3.8191 (1) Å] are also observed.
organic compounds
Open access
The title compound, C31H27F3O7, is a liquid crystal and exhibits enantiotropic SmA and nematic phase transitions. In the crystal, the the 2H-chromene ring system makes dihedral angles of 54.46 (17) and 7.79 (16)°, respectively, with the central benzene ring and 4-(heptyloxy)benzene ring. The three F atoms of the –CF3 group are disordered over two sets of sites, with an occupancy ratio of 0.62 (3):0.38 (3). The crystal structre features two pairs of C—HO hydrogen bonds, which form inversion dimers and generate R22(10) and R22(30) ring patterns. C—HO interactions along [100] and C—Hπ interactions futher consolidate the packing, leading to a three-dimensional network.