PMCC PMCC

Search tips
Search criteria

Advanced
Results 1-25 (222)
 

Clipboard (0)
None
Journals
Authors
more »
Year of Publication
Document Types
1.  2,2,2-Tribromo-N-(3-methyl­phen­yl)acetamide 
The asymmetric unit of the title compound, C9H8Br3NO, contains two independent mol­ecules. The conformation of the N—H bond is anti to the 3-methyl substituent in the benzene ring in each mol­ecule. The structure shows both intra­molecular N—H⋯Br and inter­molecular N—H⋯O hydrogen bonding, the latter leading to the formation of helical supra­molecular chains along the b axis.
doi:10.1107/S160053680905048X
PMCID: PMC2971947  PMID: 21578944
2.  N-(3,5-Dimethyl­phen­yl)benzene­sulfonamide 
In the crystal structure of the title compound, C14H15NO2S, the mol­ecule is bent at the S atom with a C—SO2—NH—C torsion angle of 67.9 (2)°. The two benzene rings are tilted by 54.6 (1)° relative to each other. In the crystal, inter­molecular N—H⋯O hydrogen bonds pack the mol­ecules into a supra­molecular structure.
doi:10.1107/S1600536809050089
PMCID: PMC2971996  PMID: 21578932
3.  N-(3,5-Dimethyl­phen­yl)-2,4-dimethyl­benzene­sulfonamide 
In the title compound, C16H19NO2S, the mol­ecule is twisted about the S—N bond, the C—S(O2)—N(H)—C torsion angle being 53.9 (2)°. The dihedral angle between the two benzene rings is 82.1 (1)°. The crystal structure features inversion-related dimers linked by N—H⋯O hydrogen bonds.
doi:10.1107/S1600536809050740
PMCID: PMC2972036  PMID: 21578969
4.  2,4-Dimethyl-N-(2-methyl­phen­yl)benzene­sulfonamide 
In the title compound, C15H17NO2S, the mol­ecule is bent at the S atom with a C—SO2—NH—C torsion angle of 71.6 (1)°. The two benzene rings are tilted by 47.0 (1)° relative to each other. The crystal structure features inversion-related dimers linked by pairs of N—H⋯O hydrogen bonds.
doi:10.1107/S1600536809049563
PMCID: PMC2972019  PMID: 21578918
5.  4-Methyl-N-(3-methyl­phen­yl)benzene­sulfonamide 
In the title compound, C14H15NO2S, the conformation of the N—C bond in the C—SO2—NH—C segment has gauche torsion angles with respect to the S=O bonds. Further, the conformation of the N—H bond is anti to the 3-methyl group in the aniline benzene ring. The mol­ecule is bent at the N atom with a C—SO2—NH—C torsion angle of 56.7 (3)°. The dihedral angle between the benzene rings is 83.9 (1)°. In the crystal, inter­molecular N—H⋯O hydrogen bonds pack the mol­ecules into a supra­molecular structure.
doi:10.1107/S1600536809049332
PMCID: PMC2972154  PMID: 21578916
6.  4-Methyl-N-(2-methyl­phen­yl)benzene­sulfonamide 
In the title compound, C14H15NO2S, the dihedral angle between the aromatic rings is 49.7 (1)°. In the crystal, inversion dimers linked by pairs of N—H⋯O hydrogen bonds occur.
doi:10.1107/S1600536809049411
PMCID: PMC2971770  PMID: 21578896
7.  N-(4-Chloro­benzo­yl)benzene­sulfonamide 
In the crystal structure of the title compound, C13H10ClNO3S, the conformation of the N—H bond in the C—SO2—NH—C(O) segment is anti to the C=O bond. The dihedral angle between the two aromatic rings is 68.6 (1)°. The mol­ecule is twisted at the S atom with a dihedral angle of 75.7 (1)° between the sulfonyl benzene ring and the —SO2—NH—C—O segment; the dihedral angle between the latter and the benzoyl ring is 8.3 (2)°. In the crystal, mol­ecules are linked by N—H⋯O(S) hydrogen bonds.
doi:10.1107/S1600536809048399
PMCID: PMC2971909  PMID: 21578874
8.  Methyl N-phenyl­succinamate 
In the structure of the title compound, C11H13NO3, the conformations of the N—H and C=O bonds in the amide fragment are trans to each other. In the crystal, mol­ecules are linked into a 21 helical chain that propagates along the c axis through N—H⋯O inter­actions.
doi:10.1107/S160053680904690X
PMCID: PMC2971872  PMID: 21578794
9.  1,8-Bis(3-chloro­anilino)-N,N′-bis­(3-chloro­phen­yl)octane-1,8-diimine 
There are two half-mol­ecules in the asymmetric unit of the title compound, C32H30Cl4N4, in both of which the N—H bonds are syn to the meta-chloro substituents in the adjacent benzene ring. The other two Cl atoms of these two mol­ecules are disordered with occunpancy ratios of 0.79 (2):0.21 (2) and 0.68 (1):0.32 (1). Adjacent chloro­phenyl rings make dihedral angles of 74.3 (2) and 63.0 (2)° in the two mol­ecules. In the crystal, inter­molecular N—H⋯N hydrogen bonds link the mol­ecules into infinite chains.
doi:10.1107/S1600536811004612
PMCID: PMC3051938  PMID: 21522366
10.  N-Phenyl­succinamic acid 
In the crystal structure of the title compound, C10H11NO3, the conformations of N—H and C=O bonds in the amide segment are anti to each other. Further, the conformations of the amide O atom and the carbonyl O atom of the acid segment are anti to each other and to the adjacent –CH2 groups. The C=O and O—H bonds of the acid group are in syn positions with respect to each other. In the crystal, the mol­ecules are packed into infinite chains along the a axis through inter­molecular N—H⋯O and O—H⋯O hydrogen bonds.
doi:10.1107/S160053681005364X
PMCID: PMC3051503  PMID: 21522943
11.  N-(4-Methyl­phen­yl)succinamic acid 
In the title compound, C11H13NO3, the conformations of the N—H and C=O bonds in the amide segment are anti to each other. Further, the conformations of the amide and carbonyl O atoms of the acid segment are also anti to the adjacent –CH2 groups. The C=O and O—H bonds of the acid group are syn to each other. In the crystal, mol­ecules are packed into infinite chains along the b axis through inter­molecular N—H⋯O and O—H⋯O hydrogen bonds.
doi:10.1107/S1600536810053298
PMCID: PMC3050143  PMID: 21522726
12.  N-(2,3-Dimethyl­phen­yl)succinamic acid 
In the title compound, C12H15NO3, the conformations of N—H and C=O bonds in the amide segment are anti to each other and that of the amide H atom is syn to the ortho- and meta-methyl groups in the benzene ring. In the crystal, the mol­ecules are linked into infinite chains through inter­molecular O—H⋯O and N—H⋯O hydrogen bonds.
doi:10.1107/S160053681005292X
PMCID: PMC3050406  PMID: 21522736
13.  N,N′-Diphenyl­but-2-enediamide 
In the title compound, C16H14N2O2, the conformations of the N—H and C=O bonds in the C—NH—CO—CH =CH—CO—NH—C segment are anti to each other. The two C=O bonds are also anti to each other. The two phenyl rings make an inter­planar angle of 41.2 (1)°. An intra­molecular N—H⋯O hydrogen bond occurs. In the crystal, inter­molecular N—H⋯O hydrogen bonding links the mol­ecules into infinite chains along the a axis.
doi:10.1107/S1600536810051330
PMCID: PMC3050154  PMID: 21522628
14.  N-(2,3-Dimethyl­phen­yl)-4-methyl­benzene­sulfonamide 
In the title compound, C15H17NO2S, the dihedral angle between the aromatic rings is 38.3 (1)°. The conformation of the N—H bond is anti to the methyl groups in the adjacent aromatic ring. In the crystal, N—H⋯O hydrogen bonds link the molecules into infinite chains.
doi:10.1107/S1600536810048786
PMCID: PMC3011712  PMID: 21589620
15.  N-(2,4-Dichloro­phen­yl)-2,4-dimethyl­benzene­sulfonamide 
In the title compound, C14H13Cl2NO2S, the mol­ecule is bent at the S atom with an C—SO2—NH—C torsion angle of −69.9 (2)°. The dihedral angle between the sulfonyl and aniline benzene rings is 44.0 (1)°. The crystal structure features inversion dimers linked by pairs of N—H⋯O hydrogen bonds. An intra­molecular N—H⋯Cl hydrogen bond is also observed.
doi:10.1107/S1600536810045563
PMCID: PMC3011417  PMID: 21589443
16.  N-(2,6-Dichloro­phen­yl)benzene­sulfonamide 
In the title compound, C12H9Cl2NO2S, the mol­ecule is bent at the S atom with a C—SO2—NH—C torsion angle of 82.5 (2)°. The benzene rings are tilted relative to each other by 43.5 (1)°. The crystal structure features chains linked by N—H⋯O hydrogen bonds.
doi:10.1107/S160053681004420X
PMCID: PMC3011408  PMID: 21589371
17.  N-(2,3-Dichloro­phen­yl)-4-methyl­benzene­sulfonamide 
The title compound, C13H11Cl2NO2S, contains two molecules in the asymmetric unit in which the dihedral angles between the benzene rings are 76.0 (1) and 79.9 (1)°. The conformations of the N—H bonds with respect to their adjacent ortho-chlorine atoms are syn. In the crystal, N—H⋯O hydrogen bonds link the molecules into dimers.
doi:10.1107/S1600536810044375
PMCID: PMC3011474  PMID: 21589372
18.  N-(2,3-Dichloro­phen­yl)-2,4-dimethyl­benzene­sulfonamide 
In the title compound, C14H13Cl2NO2S, the dihedral angle between the two aromatic rings is 70.4 (1)°. The mol­ecular conformation is stabilized by an intra­molecular N—H⋯Cl hydrogen bond.
doi:10.1107/S1600536810044338
PMCID: PMC3011480  PMID: 21589370
19.  N,N′-Bis(3-methyl­phen­yl)propane­diamide 
The mol­ecular structure of the title compound, C17H18N2O2, is symmetrical around the central C atom. The two halves of the mol­ecule are related by a twofold rotation axis. In each half of the mol­ecule, the structure is stabilized by intra­molecular C—H⋯O hydrogen bonds. Furthermore, each amide group is almost coplanar with the adjacent benzene ring [dihedral angle is 9.2 (2)°]. The planes of the amide groups are inclined at an angle of 68.5 (1)°, while the two benzene rings make a dihedral angle of 70.40 (3)°. In the crystal, mol­ecules are linked by inter­molecular N—H⋯O hydrogen bonds into chains running along the c axis. Neighbouring chains are weakly coupled by π–π stacking inter­actions [centroid–centroid distance = 3.7952 (8) Å].
doi:10.1107/S1600536810044089
PMCID: PMC3009026  PMID: 21589191
20.  N,N′-Bis(2-chloro­phen­yl)propane­diamide 
The crystal structure of the title compound, C15H12Cl2N2O2, contains three intramolecular hydrogen bonds; two C—H⋯O and a nonclassical N—H⋯Cl. The structure is further stabilized by intermolecular N—H⋯O hydrogen bonds and C—H⋯π interactions, resulting in a three-dimensional network. The two benzene rings make an interplanar angle of 58.0 (1)°.
doi:10.1107/S1600536810044090
PMCID: PMC3009238  PMID: 21589192
21.  2,4-Dichloro-N-(2-methyl­phen­yl)benzene­sulfonamide 
In the title compound, C13H11Cl2NO2S, the methyl-substituted aromatic ring is disordered over two positions [occupancy ratio 0.705 (5):0.295 (5)]. The dihedral angles between the two aromatic rings are 74.9 (1) and 71.0 (3)° in the two disorder components. The crystal structure features centrosymmetric dimers linked by pairs of N—H⋯O hydrogen bonds.
doi:10.1107/S1600536810035166
PMCID: PMC2983146  PMID: 21587532
22.  4-Chloro-2-methyl-N-(4-methyl­phen­yl)benzene­sulfonamide 
The asymmetric unit of the title compound, C14H14ClNO2S, contains two independent mol­ecules. The torsion angles of the C—SO2—NH—C segments in the two mol­ecules are −76.5 (5) and −48.3 (4)°. The two aromatic rings are tilted relative to each other by 76.6 (2)° in one mol­ecule and 70.7 (2)° in the other. In the crystal structure, inter­molecular N—H⋯O hydrogen bonds link the mol­ecules into centrosymmetric dimers.
doi:10.1107/S1600536810032320
PMCID: PMC3007926  PMID: 21588675
23.  N-(4-Chloro­benzo­yl)-2-methyl­benzene­sulfonamide 
The asymmetric unit of the title compound, C14H12ClNO3S, contains two independent mol­ecules. The conformations of the N—C bonds in the C—SO2—NH—C(O) segments have gauche torsions with respect to the S=O bonds. The mol­ecules are twisted at the S atoms with torsion angles of −54.2 (2) and 63.8 (2)° in the two mol­ecules. The dihedral angles between the sulfonyl benzene rings and the —SO2—NH—C—O segments are 85.0 (1) and 87.0 (1)°. Furthermore, the dihedral angles between the sulfonyl and benzoyl benzene rings are 89.4 (1) and 82.4 (1)° in the two mol­ecules. In the crystal, mol­ecules are linked by N—H⋯O(S) hydrogen bonds.
doi:10.1107/S1600536810026759
PMCID: PMC3007381  PMID: 21588311
24.  4-Chloro-N-(4-chloro­phen­yl)-2-methyl­benzene­sulfonamide 
In the title compound, C13H11Cl2NO2S, the conformations of the N—C bonds in the C—SO2—NH—C segment have gauche torsions with respect to the S=O bonds. Further, the conformation of the N—H bond is syn to the ortho-methyl group in the sulfonyl benzene ring. The torsion angle of the C—SO2—NH—C segment in the mol­ecule is 55.0 (2)°. The two benzene rings are tilted relative to each other by 67.0 (1)°. In the crystal, inter­molecular N–H⋯O hydrogen bonds link the mol­ecules into infinite column-like chains.
doi:10.1107/S1600536810026930
PMCID: PMC3007535  PMID: 21588314
25.  2-Methyl-N-(2-methyl­benzo­yl)benzene­sulfonamide 
In the title compound, C15H15NO3S, the 2-methyl­phenyl ring bonded to the sulfonyl group is disordered with site-occupation factors of 0.75:0.25. The dihedral angles between the two aromatic rings are 67.6 (1) and 69.2 (1)° for the major and the minor occupied sites, respectively. In the crystal, mol­ecules are linked into centrosymmetric dimers by pairs of N—H⋯O hydrogen bonds.
doi:10.1107/S1600536810026735
PMCID: PMC3007270  PMID: 21588306

Results 1-25 (222)