journal menu
organic compounds
In the title compound, C13H12O3, there are two independent molecules in the asymmetric unit. Both the molecules are nearly planar and an intramolecular O—H
O hydrogen bond is observed between the hydroxy group and the O atom of the carbonyl group. The crystal structure is stabilized by π–π stacking interactions.
O hydrogen bond is observed between the hydroxy group and the O atom of the carbonyl group. The crystal structure is stabilized by π–π stacking interactions.organic compounds
In the title compound, C9H9BrO3, an intramolecular hydrogen bond exists between the hydroxyl group and the O atom of the carbonyl group. The molecules are stacked along the b axis with significant π–π interactions.
organic compounds
The asymmetric unit of the title compound, C8H7NO5, contains two crystallographically independent molecules. In both molecules, an intramolecular hydrogen bond exists between the hydroxyl group and the O atom of the carbonyl group. The molecules are stacked, with weak π–π interactions, along the a axis.
organic compounds
In the title compound, C9H9NO5, an intramolecular hydrogen bond exists between the hydroxyl group and the O atom of the carbonyl group. In the crystal structure, the molecules are linked to form centrosymmetrically related hydrogen-bonded dimers. The dimers are stacked along the a axis with significant π–π interactions.
organic compounds
In the title molecule, C8H7NO4, the non-H atoms are essentially coplanar. In the crystal structure, short intermolecular OC (3.21 Å) and ON (3.17 Å) contacts indicate the presence of π–π interactions.
C (3.21 Å) and ON (3.17 Å) contacts indicate the presence of π–π interactions.organic compounds
The title compound, C9H8N2O7, is found to have an intramolecular hydrogen bond between the hydroxy group and the O atom of the carbonyl group. The molecule is essentially planar.
organic compounds
In the title compound, C10H10N2O6, the dinitrobenzoate moiety is nearly planar. In the crystal structure, the molecules are stacked along the b axis, without any π–π interaction.
organic compounds
The structure of the title compound, C8H6N2O6, is essentially planar, except for the methyl H atoms. In the crystal structure, the molecules are stacked along the a axis with π–π interactions.
organic compounds
In the title compound, C12H10O3, there are two independent molecules in the asymmetric unit. Both molecules are essentially planar and each features an intramolecular O—HO hydrogen bond between the hydroxy H atom and the carbonyl O atom. The crystal structure is stabilized by π–π stacking interactions.
O hydrogen bond between the hydroxy H atom and the carbonyl O atom. The crystal structure is stabilized by π–π stacking interactions.organic compounds
The title compound, C10H10N2O6, has two independent molecules in the asymmetric unit. All bond lengths and angles in the molecules are in normal ranges. The crystal packing is stabilized by van der Waals forces and π–π stacking interactions.
organic compounds
The asymmetric unit of the title compound, C8H10NO2+·Cl−·H2O, contains two crystallographically independent 2-(methoxycarbonyl)anilinium cations related by a pseudo-inversion centre, two chloride ions and two water molecules. A three-dimensional network structure is formed via N—HO, N—HCl and O—HCl hydrogen bonds, and π–π stacking interactions.
O, N—HCl and O—HCl hydrogen bonds, and π–π stacking interactions.organic compounds
In the title compound, C6H11NO4, the ψ1 and ψ2 torsion angles are −34.1 (3) and 149.1 (4)°, respectively. Atom Cγ is gauche to N and atom Cδ is trans to Cα. Translationally and screw-related molecules are connected by N—HO hydrogen bonds to form layers parallel to the ab plane.
O hydrogen bonds to form layers parallel to the ab plane.organic compounds
In the title compound, C10H11NO5, all bond lengths and angles show normal values. Weak intermolecular O—HO hydrogen bonds form centrosymmetric dimers, which are further linked by π–π interactions into ladders extending along the a axis.
O hydrogen bonds form centrosymmetric dimers, which are further linked by π–π interactions into ladders extending along the a axis.organic compounds
In the title compound, C7H13NO4, there are two independent molecules in the asymmetric unit. All bond lengths and angles in the molecules are in normal ranges. The ψ1 and ψ2 torsion angles are 159.9 (4) and −23.4 (5)°, respectively, in the first molecule, and the ψ3 and ψ4 torsion angles 157.7 (4) and −26.7 (5)°, respectively, in the second. Each of the independent molecules has a different comformation. The translationally and screw-related molecules are connected by N—HO hydrogen bonds, forming a two-dimensional network parallel to the ac plane.
O hydrogen bonds, forming a two-dimensional network parallel to the ac plane.organic compounds
In the title compound, C8H7BrO3, an intramolecular hydrogen bond exists between the hydroxyl group and the O atom of the carbonyl group. The molecules are stacked along the b axis with weak π–π interactions.
organic compounds
The molecule of the title compound, C11H12N2O6, is essentially planar except for the alkyl chain, which has a non-extended conformation.
