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4-{2-[(5-Chloro-2-hydroxy-benzyl-idene)amino]eth-yl}benzene-sulfonamide.

ABSTRACT: In the mol-ecule of the title compound, C(15)H(15)ClN(2)O(3)S, the S atom adopts a distorted tetra-hedral coordination geometry with two O atoms, one N atom of the amide group and one C atom of the aromatic ring. An intra-molecular O-H⋯N hydrogen bond results in the formation of a planar six-membered ring, which is oriented with respect to the adjacent aromatic ring at a dihedral angle of 3.38 (11)°. Thus, the two rings are nearly coplanar. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers.

SUBMITTER: Chohan ZH

PROVIDER: S-EPMC2960939 | biostudies-literature |

REPOSITORIES: biostudies-literature

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4-{2-[(5-Bromo-2-hydroxy-benzyl-idene)amino]eth-yl}benzene-sulfonamide.

Project description:In the title compound, C(15)H(15)BrN(2)O(3)S, the dihedral angle between the benzene rings is 6.1?(2)° and an intra-molecular O-H?N hydrogen bond helps to establish the conformation. In the crystal structure, the mol-ecules are linked by way of N-H?O and C-H?O hydrogen bonds.

| S-EPMC2970355 | biostudies-literature

4-[(E)-(5-Chloro-2-hydroxy-benzyl-idene)amino]benzene-sulfonamide.

Project description:In the mol-ecule of title compound, C(13)H(11)ClN(2)O(3)S, the aromatic rings are oriented at a dihedral angle of 12.27?(3)°. An intra-molecular O-H?N hydrogen bond results in the formation of a planar (mean deviation 0.0083?Å) six-membered ring, which is nearly coplanar with the adjacent ring at a dihedral angle of 2.36?(13)°. In the sulfonamide group, the S atom is 0.457?(3)?Å from the plane through the O and N atoms. In the crystal structure, inter-molecular N-H?O hydrogen bonds link the mol-ecules.

| S-EPMC2967971 | biostudies-literature

4-(5-Chloro-2-hydroxy-benzyl-idene-amino)-N-(4,6-dimethyl-pyrimidin-2-yl)benzene-sulfonamide.

Project description:The title compound, C(19)H(17)ClN(4)O(3)S, is a Schiff base compound of 5-chloro-salicylaldehyde and sulfamethazine [4-amino-N-(4,6-dimethyl-2-pyrimidin-yl)benzene-sulfonamide]. The geometry around the S atom is distorted tetra-hedral, comprising two O atoms of the sulfonyl group, a C atom of a benzene ring and the amino N atom. The title compound has an intra-molecular O-H⋯N hydrogen bond and two inter-molecular C-H⋯O and N-H⋯O hydrogen bonds, which link neighbouring mol-ecules into 10-membered rings. As a result of an unavoidable conformational arrangement, a slightly short intra-molecular contact of distance 2.59 Å exists between an O atom of the sulfonyl group and an H atom of the sulfamethazine benzene ring.

| S-EPMC2960946 | biostudies-literature

N-(2,3-Dihydro-1,3-thia-zol-2-yl-idene)-4-[(2-hydroxy-benzyl-idene)amino]benzene-sulfonamide.

Project description:The title compound, C(16)H(13)N(3)O(3)S(2), was prepared by reaction of salicylaldehyde and sulfathia-zole in methanol. The dihedral angle between the central benzene ring and the thia-zole ring is 85.2 (2)° and that between the two benzene rings is 17.9 (2)°. An intra-molecular O-H⋯N hydrogen bond generates an S(6) ring motif. In the crystal, mol-ecules are held together by inter-molecular N-H⋯N and C-H⋯O hydrogen bonds, forming a two-dimensional network parallel to the bc plane.

| S-EPMC2969909 | biostudies-literature

4-{2-[(Z)-(5-Methyl-2-fur-yl)methyl-idene-amino]-eth-yl}benzene-sulfonamide.

Project description:In the title compound, C(14)H(16)N(2)O(3)S, the dihedral angle between the phenyl and 5-methyl-furan groups is 54.89 (14)° and the C=N bond assumes a trans conformation. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(8) ring motifs. The dimers are inter-linked by N-H⋯N hydrogen bonds, resulting in the formation of infinite chains extending along the b axis. The packing is consolidated by weak C-H⋯π inter-actions.

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4-{[4-(Di-methyl-amino)-benzyl-idene]amino}-benzene-sulfonamide.

Project description:The title Schiff base compound, C15H17N3O2S, is non-planar with a dihedral angle of 69.88?(4)° between the planes of the benzene rings. In the crystal, pairs of N-H?N hydrogen bonds, between the sulfonamide nitro-gen-H atom and the azomethine N atom, link the mol-ecules into inversion dimers, forming R 2 (2)(16) ring motifs. These dimers are linked by N-H?O hydrogen bonds, between the sulfonamide nitro-gen-H atom and one sulfonamide O atom, forming sheets lying parallel to (100). Within the sheets there are weak parallel slipped ?-? inter-actions involving inversion-related benzene-sulfonamide rings [centroid-centroid distance = 3.8800?(9)?Å; normal distance = 3.4796?(6)?Å; slippage = 1.717?Å].

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4-[(4-Meth-oxy-benzyl-idene)amino]-benzene-sulfonamide.

Project description:The title Schiff base compound, C(14)H(14)N(2)O(3)S, is non-planar, with a dihedral angle of 24.16?(7)° between the benzene rings. In the crystal, N-H?O and N-H?N hydrogen bonds link the mol-ecules into a layer parallel to (011). Intra- and inter-layer C-H?O inter-actions and ?-? inter-actions [centroid-centroid distances = 3.8900?(9) and 3.9355?(8)?Å] are also present.

| S-EPMC3379209 | biostudies-literature

4-[(Z)-(2-Eth-oxy-4-oxochroman-3-yl-idene)methyl-amino]benzene-sulfonamide monohydrate.

Project description:In the mol-ecule of the title compound, C(18)H(18)N(2)O(5)S·H(2)O, the heterocyclic ring adopts a twisted conformation, while the aromatic rings are oriented at a dihedral angle of 45.46?(3)°. Intra-molecular C-H?O and N-H?O inter-actions result in the formations of planar five- and six-membered rings. In the crystal structure, N-H?O hydrogen bonds link the NH(2) and SO(2) groups through R(2) (2)(8) ring motifs, while C-H?O and N-H?O hydrogen bonds result in the formation of R(2) (1)(7) ring motifs. N-H?O and O-H?O hydrogen bonds link the uncoordinated water mol-ecules, forming a polymeric network. A weak C-H?? inter-action is also present.

| S-EPMC2977350 | biostudies-literature

4-Amino-5-(2-hydroxy-benzyl-idene-amino)benzene-1,2-dicarbonitrile.

Project description:A new tetra-dentate unsymmetrical Schiff base, C(15)H(10)N(4)O, has been synthesized from 4,5-dicyano-o-phenyl-enediamine and o-vanillin in refluxing ethanol. The dihedral angle between the two benzene rings is 39.0 (1)°. There are intra-molecular O-H⋯N and weak inter-molecular N-H⋯O and N-H⋯N inter-actions.

| S-EPMC2977663 | biostudies-literature

4-[(2-Hy-droxy-5-nitro-benzyl-idene)amino]-benzene-sulfonamide.

Project description: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 motif. In the crystal, inter-molecular N-H⋯O and C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network.

| S-EPMC2983168 | biostudies-literature

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