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The reaction of 1-aminoanthraquinone with 7,7′,8,8′-tetracyanoquinodimethane yielded the title charge-transfer complex, C14H9NO2·C12H4N4. The molecules have maximum deviations from the mean planes through the non-H atoms of 0.0769 (14) Å for an oxo O atom and 0.1175 (17) Å for a cyano N atom, respectively. The dihedral angle between the two planes is 3.55 (3)°. In the crystal, molecules are stacked into columns along the a-axis direction. Pairs of N—H
N and N—HO interactions connect the molecules perpendicular to the stacking direction. Additionally, an intramolecular N—HO hydrogen-bond interaction is observed for 1-aminoanthraquinone.
N and N—HO interactions connect the molecules perpendicular to the stacking direction. Additionally, an intramolecular N—HO hydrogen-bond interaction is observed for 1-aminoanthraquinone.organic compoundsOpen access
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In the title compound, C10H11N3O2S, the 1,3-benzodioxole and hydrazinecarbothioamide fragments are nearly planar [(mean deviations from planarity for non-H atoms of 0.0325 (12) Å and 0.0707 (10) Å, respectively] and subtend a dihedral angle of 29.06 (5)°. In the crystal, molecules are linked by pairs of almost linear N—HS hydrogen bonds, forming inversion dimers. These dimers are additionally connected by weaker and strongly bent N—HS interactions into chains along [101]. There is one additional weak N—HO contact which, if considered as an interaction, leads to the formation of a three-dimensional network.
S hydrogen bonds, forming inversion dimers. These dimers are additionally connected by weaker and strongly bent N—HS interactions into chains along [101]. There is one additional weak N—HO contact which, if considered as an interaction, leads to the formation of a three-dimensional network.organic compoundsOpen access
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In the title compound, C15H11BrN4OS, the least-squares plane through the 5-bromoisatin fragment forms a dihedral angle of 13.63 (14)° with the phenyl ring. The molecular conformation features intramolecular N—HN and N—HO hydrogen bonds. In the crystal, molecules are connected via pairs of N—HO interactions into centrosymmetric dimers. Additionally, π–π stacking interactions link molecules into chains parallel to the a axis with short CC distances being observed between the phenyl and thiocarbonyl [3.236 (8) Å] groups and between the thiocarbonyl and carbonyl [3.351 (4) Å] groups of stacked molecules.
N and N—HO hydrogen bonds. In the crystal, molecules are connected via pairs of N—HO interactions into centrosymmetric dimers. Additionally, π–π stacking interactions link molecules into chains parallel to the a axis with short CC distances being observed between the phenyl and thiocarbonyl [3.236 (8) Å] groups and between the thiocarbonyl and carbonyl [3.351 (4) Å] groups of stacked molecules.organic compoundsOpen access
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In the title compound, C9H11N3S, there is an intramolecular O—HO hydrogen bond involving the OH group and the adjacent methoxy O atom. The molecule is essentially planar, with the maximum deviation from the mean plane of the non-H atoms being 0.1127 (14) Å for the methyl C atom. In the crystal, molecules are connected via centrosymmetric pairs of N—HS and O—HO hydrogen bonds into a two-dimensional network parallel to (10-3).
O hydrogen bond involving the OH group and the adjacent methoxy O atom. The molecule is essentially planar, with the maximum deviation from the mean plane of the non-H atoms being 0.1127 (14) Å for the methyl C atom. In the crystal, molecules are connected via centrosymmetric pairs of N—HS and O—HO hydrogen bonds into a two-dimensional network parallel to (10-3).
