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The title compound {systematic name: 4-[(E)-2-(3,5-dihydroxyphenyl)ethenyl]benzene-1,3-diol dihydrate}, C14H12O4·2H2O, a derivative of resveratrol, was isolated from mulberry. The linking C=C double bond has a trans conformation and allows the formation of a conjugated system throughout the molecule. The dihedral angle between the benzene rings is 9.39 (9)°. In the crystal, molecules are connected into a three-dimensional architecture through O—H
O hydrogen bonds between hydroxy groups of oxyresveratrol and solvent water molecules.
O hydrogen bonds between hydroxy groups of oxyresveratrol and solvent water molecules.organic compoundsOpen access
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In the title compound [systematic name: 2-hydroxy-N-(5-nitro-1,3-thiazol-2-yl)benzamide pyridine monosolvate], C10H7N3O4S·C5H5N, the dihedral angle between the pyridine and benzamide rings is 80.55 (7)°. An intamolecular O—HN hydrogen bond occurs in the tizoxanide. In the crystal, the components are linked by an O–HN hydrogen bond, forming a zigzag chain along the c axis. Aromatic π–π interactions between inversion-related pyridine rings [centroid–centroid distance = 3.803 (6) Å] are also observed.
N hydrogen bond occurs in the tizoxanide. In the crystal, the components are linked by an O–HN hydrogen bond, forming a zigzag chain along the c axis. Aromatic π–π interactions between inversion-related pyridine rings [centroid–centroid distance = 3.803 (6) Å] are also observed.
