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The asymmetric unit of the title compound, C20H24N2OS, consists of two crystallographically independent molecules. In each molecule, an intramolecular N—H
O hydrogen bond forms an S(6) ring motif. The dihedral angles between the terminal benzene rings in the two molecules are 75.52 (7) and 42.80 (7)°. In the crystal, intermolecular N—HS interactions link the molecules into a chain along the c axis.
O hydrogen bond forms an S(6) ring motif. The dihedral angles between the terminal benzene rings in the two molecules are 75.52 (7) and 42.80 (7)°. In the crystal, intermolecular N—HS interactions link the molecules into a chain along the c axis.organic compoundsOpen access
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In the title compound, C19H20N2O6, the azomethine [C=N = 1.269 (2) Å] double bond adopts an E conformation and the dihedral angle between the planes of the benzene rings is 17.41 (11)°. In the crystal, inversion dimers linked by pairs of N—HO hydrogen bonds generate R22(16) loops. The dimers are connected by C—HO and C—HN hydrogen bonds, forming sheets lying parallel to (100).
O hydrogen bonds generate R22(16) loops. The dimers are connected by C—HO and C—HN hydrogen bonds, forming sheets lying parallel to (100). organic compoundsOpen access
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In the title compound, C14H13N3O2·H2O, the azomethine double bond adopts an E conformation and the N—N=C—C torsion angle is 178.37 (19)°. The dihedral angle between the benzene and pyridine rings is 5.58 (12)° and the C atom of the methoxy group is roughly coplanar with its attached ring [deviation = 0.157 (3) Å]. In the crystal, the components are linked by O—HO, O—HN, N—HO and C—HO hydrogen bonds, forming (001) sheets. The water O atom accepts one N—HO and two C—HO interactions from the adjacent organic molecule.
O, O—HN, N—HO and C—HO hydrogen bonds, forming (001) sheets. The water O atom accepts one N—HO and two C—HO interactions from the adjacent organic molecule.organic compoundsOpen access
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In the title compound, C17H18N2O4, the azomethine double bond adopts an E conformation with an N—N—C—C torsion angle of −178.3 (3)°. The benzene rings are almost coplaner, with a dihedral angle of 2.98 (14)° between their mean planes. In the crystal, the molecules are linked by N—HO hydrogen bonds, resulting in chains of molecules lying parallel to the b axis. The structure is further consolidated by rather weak C—HO hydrogen-bonding interactions, resulting in six-membered rings about inversion centers linked into chains arranged parallel to the b axis.
O hydrogen bonds, resulting in chains of molecules lying parallel to the b axis. The structure is further consolidated by rather weak C—HO hydrogen-bonding interactions, resulting in six-membered rings about inversion centers linked into chains arranged parallel to the b axis.
