200 research outputs found
3-(2,4,6-Trimethylbenzoyl)-2-naphthoic acid
The asymmetric unit of the title compound, C21H18O3, contains two crystallographically independent molecules. The two molecules are linked into cyclic centrosymmetric dimers R
2
2(8) by O—H⋯O hydrogen bonds. The dihedral angles between the naphthalene ring system and the benzene ring are 87.0 (8) and 84.4 (2)° in the two molecules. The crystal packing is stabilized by O—H⋯O, C—H⋯π and π–π interactions [centroid–centroid distance = 3.664 (11) Å]. In one molecule, the mesityl ring is disordered over two positions [occupancy ratio 0.690 (3):0.690 (3)]
N-(2-Formylphenyl)benzenesulfonamide
In the title compound, C13H11NO3S, the two aromatic rings are oriented at an angle of 88.18 (8)°. Intramolecular N—H⋯O and C—H⋯O hydrogen bonds are observed, each of which generates an S(6) ring motif. In the crystal, molecules are linked into C(7) chains along [010] by intermolecular C—H⋯O hydrogen bonds. The structure is further stabilized by intermolecular C—H⋯π interactions involving the sulfonyl-bound phenyl ring
Diethyl 2-(2-nitrobenzylidene)malonate
In the title compound, C14H15NO6, the ethoxycarbonyl groups adopt extended conformations. In the crystal, molecules are linked into centrosymmetric dimers via pairs of C—H⋯O hydrogen bonds with a R
2
2(20) motif
Ethyl 2-acetoxymethyl-1-phenylsulfonyl-1H-indole-3-carboxylate
In the title compound, C20H19NO6S, the phenyl ring of the phenylsulfonyl group makes a dihedral angle of 83.35 (5)° with the indole ring system. The molecular structure exhibits a number of short intramolecular C—H⋯O contacts
(4-Bromophenyl)(1-phenylsulfonyl-1H-indol-2-yl)methanone
In the title compound, C21H14BrNO3S, the indole ring system forms dihedral angles of 65.64 (8) and 59.30 (8)°, respectively, with the phenyl and bromophenyl rings. In the crystal, molecules are connected by a C—H⋯O hydrogen bond, forming a chain along [101]. The chains are further connected by weak intermolecular C—H⋯π interactions, forming a layer parallel to the ac plane
Naphthalene-2,3-diylbis[(2-thienyl)methanone]
The asymmetric unit of the title compound, C20H12O2S2, contains two crystallographically independent molecules which differ in the orientations of thienylmethanone units with respect to the naphthalene ring system [dihedral angles of 65.30 (11) and 50.94 (11)° in one molecule, 41.94 (12) and 69.61 (13)° in the other]. The crystal structure is stabilized by C—H⋯O and C—H⋯π interactions
2-Chloromethyl-3-methyl-1-phenylsulfonyl-1H-indole
In the title compound, C16H14ClNO2S, the phenyl ring makes a dihedral angle of 78.1 (1)° with the indole ring system. The molecular structure is stabilized by weak intramolecular C—H⋯O interactions. The crystal structure exhibits weak intermolecular C—H⋯O, C—H⋯π and π–π [centroid–centroid distances = 3.620 (1)–3.794 (1) Å] interactions
Diethyl 3,4-bis(acetoxymethyl)thieno[2,3-b]thiophene-2,5-dicarboxylate
In the title compound, C18H20O8S2, the dihedral angle between the two thiophene rings is 2.33 (7)°. The methyl C atoms of the ester groups are disordered over two positions; the site-occupancy factors of the terminal methyl C atoms are 0.632 (18):0.368 (18) and 0.623 (17):0.377 (17). The molecular structure is stabilized by weak intramolecular C—H⋯O interactions and the crystal structure is stabilized through weak intermolecular C—H⋯O interactions
(2-Methyl-1-phenylsulfonyl-1H-indol-3-yl)phenylmethyl acetate
In the title compound, C24H21NO4S, the indole ring system makes dihedral angles of 77.8 (1) and 85.4 (1)°, respectively, with the S- and C-bound phenyl rings. The molecular structure is stabilized by a weak intramolecular C—H⋯O hydrogen bond. In the crystal, a weak intermolecular C—H⋯O hydrogen bond and a C—H⋯π interaction are also observed
(Acetoxy)(2-methylphenyl)methyl acetate
In the title compound, C12H14O4, the two acetoxy groups are inclined by 57.92 (5)° and 62.71 (6)° to the benzene ring. An intermolecular C—H⋯O interaction involving the two acetoxy groups generates a centrosymmetric dimer via an R
2
2(16) ring motif
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