In the title compound, C(16)H(15)NO(4), a potential bidentate N,O-donor Schiff base ligand, the benzene rings are inclined to one another by 4.24 (12)°. The mol-ecule has an E conformation about the C=N bond. An intra-molecular O-H⋯N hydrogen bond makes an S(6) ring motif. In the crystal, pairs of O-H⋯O hydrogen bonds link the mol-ecules, forming inversion dimers with R(2) (2)(8) ring motifs. T...

In the title compound, (C9H8N)4[Te2V8O28]·8H2O, the com-plete heteropolyanion is generated by a crystallographic inversion centre. One of the two quniolinium ions forms an N-H⋯Op (p = polyoxidometallate) hydrogen bond and the other an N-H⋯Ow (w = water) hydrogen bond. The water mol-ecules further link the components by O-H⋯Op and O-H⋯Ow hydrogen bonds. A number of C-H⋯O inter-actions and aromat...

In the crystal structure of the title compound, C(15)H(17)NO(2)S, the conformations of the N-C bond in the C-SO(2)-NH-C segment are trans and gauche, respectively, with respect to the S=O bonds. The mol-ecule is bent at the S atom with a C-SO(2)-NH-C torsion angle of -61.8 (2)°. Furthermore, the conformation of the N-H bond and the 3-methyl group in the aniline benzene ring are nearly anti to e...

In the crystal structure of the title compound, C(10)H(6)Cl(3)NO(3), the conformation of the amide bond is trans. The C=O and O-H bonds of the acid group are in the relatively rare anti position to each other. This is a consequence of the intra-molecular O-H⋯O hydrogen bond donated to the amide carbonyl group stabilizing the mol-ecular structure. In the crystal, inter-molecular N-H⋯O hydrogen b...

In the title compound, C10H11FN3O3S, the 2-fluoro-benzoyl and proponic acid groups maintain a trans-cis conformation with respect to the thiono C=S bond across their C-N bonds. The propionic acid group adopts an anti conformation about the C-C bond, with an N-C-C-C torsion angle of 173.8 (2)°. The amino groups are involved in the formation of intra-molecular N-H⋯O and N-H⋯F hydrogen bonds. In t...

In the title compound, C12H14Cl2N2O2S, the mol-ecule adopts a cis conformation with respect to the di-chloro-benzoyl group against the thiono group about the C-N bond. However, the di-chloro-benzene group and the thio-urea moiety are twisted by 75.41 (8)°. An intra-molecular N-H⋯O hydrogen bond occurs between the amido H atom and hydroxyl O atom. In the crystal, O-H⋯S and O-H⋯O hydrogen bonds l...

The title Schiff base compound, C(13)H(11)N(3)O(5)S, exists in an E configuration with respect to the C=N double bond. The benzene rings are almost coplanar, making a dihedral angle of 2.82 (6). The sulfonamide group is twisted away from the attached phenyl ring with an N-S-C-C torsion angle of 64.84 (11)°. An intra-molecular O-H⋯N hydrogen bond stabilizes the mol-ecule, generating an S(6) ring...

The title compound, C(13)H(16)N(2)O(3), adopts an E configuration with respect to the C=N bond and an intra-molecular N-H⋯N hydrogen bond results in the formation of a six-membered ring. In the crystal, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into a chain propagating along the b axis. Very weak π-π stacking inter-actions [centroid-centroid distance = 4.18 (2) Å] may further con...

In the mol-ecule of the title compound, C(14)H(14)ClNO(2)S, the N-H bond is in a syn position with respect to the meta-Cl atom in the aniline ring. The mol-ecule is twisted about the N-S bond with a C-SO(2)-NH-C torsion angle of 44.55 (17)°. The two aromatic rings are inclined relative to each other by 66.2 (1)°. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into infinite chains para...

The title compound, C(28)H(20)N(2)O(4), was synthesized by the reaction of 2-(hydrazonometh-yl)phenyl benzoate with iodine. The mol-ecule possesses a crystallographically imposed center of symmetry at the mid-point of the hydrazine N-N bond. The substituents at the ends of the C=N bonds adopt an E,E configuration. Inter-molecular C-H⋯π(arene) hydrogen bonds and aromatic π-π stacking inter-actio...