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A triclinic polymorph of N-[4-(4-methyl-benzene-sulfonamido)-phenyl-sulfon-yl]acetamide.

ABSTRACT: In the asymmetric unit of the title compound, C(15)H(16)N(2)O(5)S(2), there are two symmetry-independent mol-ecules which adopt similar conformations, with dihedral angles between the aromatic rings of 59.30 (8) and 61.81 (8)°, and dihedral angles between acetamide group and the benzene ring of 77.08 (10) and 78.40 (10)°. Each type of mol-ecule forms similar one-dimensional polymeric structures extending along the b axis via N-H⋯O hydrogen bonds. These hydrogen bonds generate two types of centrosymmetric motifs, R(2) (2)(8) and R(2) (2)(20). Moreover C-H⋯O inter-actions assemble the mol-ecules into a three-dimensional framework. The crystal structure was determined from a non-merohedral twin [ratio of the twin components = 0.322 (4):0.678 (4)].

SUBMITTER: Hayat K

PROVIDER: S-EPMC3343954 | biostudies-literature |

REPOSITORIES: biostudies-literature

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N-[4-(4-Chloro-benzene-sulfonamido)-phenyl-sulfon-yl]acetamide.

Project description:In the title compound, C(14)H(13)ClN(2)O(5)S(2), the dihedral angles between the central benzene ring and the pendant chloro-benzene ring and the N-acetyl group are 82.35?(5) and 79.71?(6)°, respectively, and the overall conformation of the mol-ecule approximates to a U shape. Both the C-S-N-C conformations are gauche, but with opposite senses [torsion angles = -59.29?(15) and 63.68?(16)°]. An intra-molecular C-H?O inter-action generates an S(6) ring. In the crystal, inversion dimers linked by pairs of N-H?O hydrogen bonds generate R(2) (2)(20) loops. A second N-H?O hydrogen bond links the dimers into (101) layers.

| S-EPMC3379469 | biostudies-literature

N-{[4-(4-Meth-oxy-benzene-sulfonamido)-phen-yl]sulfon-yl}acetamide.

Project description:In the title compound, C(15)H(16)N(2)O(6)S(2), the dihedral angle between the benzene rings is 83.2 (3)°. The mol-ecular conformation is stabilized by an intra-molecular C-H⋯O inter-action. In the crystal structure, mol-ecules are linked by N-H⋯O and C-H⋯O hydrogen bonds and additional stabilization is provided by weak C-H⋯π inter-actions.

| S-EPMC3006991 | biostudies-literature

N-(2-Methyl-phenyl-sulfon-yl)acetamide.

Project description:In the mol-ecular structure of the title compound, C(9)H(11)NO(3)S, the N-H and C=O bonds are anti to each other, while the amide H atom is syn with respect to the ortho-methyl group in the benzene ring. The C-S-N-C torsion angle is -58.2?(2)°, indicating a twist in the mol-ecule. In the crystal, N-H?O hydrogen bonds link the mol-ecules into chains along the c axis.

| S-EPMC3089077 | biostudies-literature

2,2-Dimethyl-N-(2-methyl-phenyl-sulfon-yl)acetamide.

Project description:The asymmetric unit of the title compound, C(11)H(15)NO(3)S, contains two independent mol-ecules in which the amide bonds show a trans conformation. The C-S-N-C torsion angles are -67.4?(2) and 63.8?(2)° in the two independent mol-ecules. In one of the mol-ecules, a methyl group is disordered over two sets of sites with a site-occupation factor of 0.661?(16) for the major occupany component. In the crystal, mol-ecules are packed into chains running along [101] through N-H?O(S) hydrogen bonds.

| S-EPMC3213502 | biostudies-literature

4-Methyl-N-(4-methyl-phenyl-sulfon-yl)-N-phenyl-benzene-sulfonamide.

Project description:The whole mol-ecule of the title compound, C20H19NO4S2, is generated by twofold rotational symmetry. The N atom is located on the twofold rotation axis and has a trigonal-planar geometry. It is bonded by two S atoms of two symmetry-related 4-methyl-phenyl-sulfonyl groups and by the C atom of the phenyl ring, which is bis-ected by the twofold rotation axis. The benzene and phenyl rings are oriented at a dihedral angle of 51.48 (5)° while the pendant benzene rings are inclined to one another by 87.76 (9)°. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules, forming a three-dimensional network.

| S-EPMC3998411 | biostudies-literature

N-(4-Chloro-phenyl-sulfon-yl)-2,2,2-tri-methyl-acetamide.

Project description:In the crystal structure of the title compound (N4CPSTMAA), C(11)H(14)ClNO(3)S, the conformations of the N-H and C=O bonds in the amide group are anti to each other, similar to those observed in N-phenyl-sulfonyl-2,2,2-trimethyl-acetamide (NPSTMAA) and 2,2,2-trimethyl-N-(4-methyl-phenyl-sulfon-yl)acetamide (N4MPSTMAA). The bond parameters in N4CPSTMAA are similar to those in NPSTMAA, N4MPSTMAA, N-aryl-2,2,2-trimethyl-acetamides and 4-chloro-benzene-sulfonamide. The -SNHCOC- unit including the amide group is essentially planar and makes a dihedral angle of 82.2?(1)° with the benzene ring, comparable to the values of 79.1?(1) and 71.2?(1)° in NPSTMAA and N4MPSTMAA, respectively. The mol-ecules in N4CPSTMAA are linked into a chain by inter-molecular N-H?O hydrogen bonds.

| S-EPMC2961760 | biostudies-literature

N-(4-Bromo-phenyl-sulfon-yl)-2,2,2-tri-methyl-acetamide.

Project description:The conformations of the N-H and C=O bonds in the SO(2)-NH-CO-C group of the title compound (N4BPSTMAA), C(11)H(14)BrNO(3)S, are trans to each other, similar to what is observed in N-(4-chloro-phenyl-sulfon-yl)-2,2,2-trimethyl-acet-amide (N4CPSTMAA) and 2,2,2-trimethyl-N-(4-methyl-phenyl--sulfon-yl)acetamide (N4MPSTMAA). The bond para-meters in N4BPSTMAA are similar to those in N4CPSTMAA, N4MPSTMAA, N-aryl-2,2,2-trimethyl-acet-amides and 4-bromo-benzene-sulfonamide. The benzene ring and the SO(2)-NH-CO-C group in N4BPSTMAA form a dihedral angle of 82.8 (1)°, comparable with the values of 82.2 (1)° in N4CPSTMAA and 71.2 (1)° in N4MPSTMAA. N-H⋯O hydrogen bonds form a centrosymmetric ring characterized by an R(2) (2)(8) motif.

| S-EPMC2962022 | biostudies-literature

N-(Phenyl-sulfon-yl)acetamide.

Project description:In the title compound, C(8)H(9)NO(3)S, the N-H bond is in an anti-periplanar conformation with respect to the C=O bond. The crystal packing is stabilized by N-H?O hydrogen bonds, generating C(4) chains propagating in [001].

| S-EPMC2979412 | biostudies-literature

N-(4-Chloro-pyridin-2-yl)-N-(4-methyl-phenyl-sulfon-yl)acetamide.

Project description:The crystal structure of the title compound, C(14)H(13)ClN(2)O(3)S, features a three-dimensional network stabilized by inter-molecular C-H?O hydrogen bonds between the mol-ecules. The 4-methyl-phenyl-sulfonyl ring forms a dihedral angle of 30.6?(1)° with the 4-chloro-pyridine ring.

| S-EPMC3011710 | biostudies-literature

2-Amino-N-(4-methyl-phenyl-sulfon-yl)-N-phenyl-benzene-sulfonamide.

Project description:In the title mol-ecule, C(19)H(18)N(2)O(4)S(2), the phenyl ring makes dihedral angles of 33.99 (2) and 43.70 (3)° with the two methyl-substituted benzene rings. Inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers. The crystal packing exhibits weak inter-molecular C-H⋯O hydrogen bonds.

| S-EPMC2960949 | biostudies-literature

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