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N-(4-Hydroxyphenyl)benzenesulfonamide
Islam Ullah Khan,Irfana Mariam,Muhammad Zia-ur-Rehman,Muhammad Arif Sajjad
Acta Crystallographica Section E , 2010, DOI: 10.1107/s160053681001322x
Abstract: The title compound, C12H11NO3S, synthesized by the reaction of benzene sulfonyl chloride with para-aminophenol, is of interest as a precursor to biologically active sulfur-containing heterocyclic compounds. The structure is stabilized by N—H...O and O—H...O hydrogen bonds.
4-{[(4-Methylphenyl)sulfonyl]amino}benzoic acid
Ghulam Mustafa,Islam Ullah Khan,Muhammad Zia-ur-Rehman,Shahzad Sharif
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811011524
Abstract: In the title compound, C14H13NO4S, the dihedral angle between the aromatic rings is 35.47 (10)°. In the crystal, adjacent molecules are connected by pairs of O—H...O hydrogen bonds, forming head-to-head centrosymmetric dimers typical for carboxylic acids. Adjacent dimers are further linked through C—H...O interactions on one side and N—H...O interactions on the other, generating [010] chains.
3-[4-(Acetamido)benzenesulfonamido]benzoic acid
Sidra Muzaffar Mirza,Ghulam Mustafa,Islam Ullah Khan,Muhammad Zia-ur-Rehman
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536810048397
Abstract: In the title compound, C15H14N2O5S, the dihedral angle between the aromatic rings is 63.20 (11) . The crystal structure displays classical intermolecular O—H...O hydrogen bonding typical for carboxylic acids, forming centrosymmetric dimers. These dimers are further connected by N—H...O and C—H...O hydrogen bonds to form an extended network.
4-Hydroxy-N-(2,4,6-tribromophenyl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide
Muhammad Nadeem Arshad,Muhammad Zia-ur-Rehman,Islam Ullah Khan,Muhammad Shafiq
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809046029
Abstract: In the title compound, C15H19Br3N2O4S, the thiazine ring adopts a distorted half-chair conformation. The enolic H atom is involved in an intramolecular O—H...O hydrogen bond, forming a six-membered ring. In the crystal, the molecules are linked into a three-dimensional network through intermolecular N—H...O, N—H...Br and O—H...Br hydrogen bonds.
2-Methyl-5-nitrobenzenesulfonamide
Muhammad Zia-ur-Rehman,Islam Ullah Khan,Nargis Naz,Muhammad Nadeem Arshad
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536809053069
Abstract: In the title compound, C7H8N2O4S, the nitro group is twisted by 9.61 (2)° relative to the benzene ring. In the crystal, molecules are linked by N—H...O and N—H...(O,O) hydrogen bonds between the amino and sulfonyl groups, forming layers parallel to (001).
Methyl 2-(benzenesulfonamido)acetate
Muhammad Nadeem Arshad,Islam Ullah Khan,Muhammad Zia-ur-Rehman,Muhammad Shafiq
Acta Crystallographica Section E , 2009, DOI: 10.1107/s160053680901616x
Abstract: The title compound, C9H11NO4S, is of interest as a precursor to biologically active benzothiazines. The crystal structure is stabilized by intermolecular N—H...O and C—H...O interactions.
Methyl 2-allyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide
Muhammad Nadeem Arshad,Muhammad Zia-ur-Rehman,Islam Ullah Khan
Acta Crystallographica Section E , 2009, DOI: 10.1107/s160053680904673x
Abstract: In the title compound, C13H13NO5S, the thiazine ring adopts a distorted half-chair conformation. Intramolecular O—H...O and C—H...O hydrogen bonds give rise to two six-membered hydrogen bonded rings. In the crystal, molecules are linked through weak intermolecular C—H...O hydrogen bonds, resulting in a zigzag chain lying along the c axis.
2-Methanesulfonamidobenzoic acid
Muhammad Shafiq,Muhammad Zia-ur-Rehman,Islam Ullah Khan,Muhammad Nadeem Arshad
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809036113
Abstract: In the title compound, C8H9NO4S, an intramolecular N—H...O hydrogen bond gives rise to a six-membered ring. In the crystal structure, two molecules are connected by O—H...O hydrogen bonds, forming a centrosymmetric dimer. These dimers are further connected by C—H...O hydrogen bonds.
N-Cyclohexyl-N-(prop-2-en-1-yl)benzenesulfonamide
Islam Ullah Khan,Zeeshan Haider,Muhammad Zia-ur-Rehman,Muhammad Nadeem Arshad
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809048077
Abstract: The title compound, C15H21NO2S, synthesized by N-alkylation of cyclohexylamine benzenesulfonamide with allyl iodide, is of interest as a precursor to biologically active sulfur-containing heterocyclic compounds. The cyclohexane ring is in a chair form and its mean plane makes a dihedral angle of 53.84 (12)° with the phenyl ring.
A second monoclinic polymorph of N-cyclohexyl-N-ethylbenzenesulfonamide
Zeeshan Haider,Muhammad Nadeem Arshad,Muhammad Zia-ur-Rehman,Islam Ullah Khan
Acta Crystallographica Section E , 2009, DOI: 10.1107/s160053680904762x
Abstract: The crystal structure of the title compound, C14H21NO2S, is a polymorph of the structure reported by Khan et al. [Acta Cryst. (2009), E65, o2867] which is also monoclinic (space group P21/c). The unit cell in the title structure is approximately half the volume of the previously reported polymorph and the asymmetric unit of the title compound contains one molecule rather than two independent molecules in the other polymorph. In the title molecule, the cyclohexane ring is in the typical chair form. In the crystal structure, molecules are linked via weak intermolecular C—H...O interactions, forming a chain along the b-axis direction.
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