organic compounds
Open access
In the title compound, C25H20N2O5S, the phenyl ring makes dihedral angles of 89.88 (8) and 13.98 (8)°, respectively, with the indole ring system and the nitrobenzene ring. The dihedral angle between the indole ring system and the nitrobenzene ring is 88.48 (11)°. The molecular structure is stabilized by a weak intramolecular C—HO interaction. In the crystal, π–π interactions, with centroid–centroid distances of 3.6741 (18) and 3.8873 (17) Å, link the molecules into layers parallel to the ab plane.
organic compounds
Open access
In the title compound C24H17BrN2O5S, the phenyl ring makes dihedral angles of 85.4 (2) and 8.8 (2)° with the indole ring system and the nitrobenzene ring, respectively, while the indole ring system and nitrobenzene ring make a dihedral angle of 80.1 (2)°. In the crystal, weak C—HO interactions link the molecules, forming a two-dimensional network parallel to the bc plane.
organic compounds
Open access
In the title compound, C26H18Cl2N2O5S, the carbazole ring system is essentially planar with a maximum deviation of 0.0498 (16) Å for the N atom. The carbazole ring system is almost orthogonal to the phenylsulfonyl and dichloro-substituted nitrophenyl rings, making dihedral angles of 84.23 (7) and 85.46 (12)°, respectively. The molecular structure features intramolecular C—HO interactions, which generate two S(6) ring motifs. In the crystal, molecules are linked by C—ClO halogen bonds [3.016 (3) Å, 166.63 (5)°], which generate infinite C(8) chains running parallel to [010].
organic compounds
Open access
In the sterically hindered title compound, C26H17ClN2O6S, the carbazole ring has a maximum deviation from planarity of 0.067 (4) Å for the C atom connected to the aldehyde group. The carbazole moiety forms a dihedral angle of 72.8 (1)° with the nitro-substituted benzene ring. The O atom of the methoxy group deviates by 0.186 (1) Å from the adjacent carbazole moiety. The phenylsulfonyl group forms intramolecular C—HO bonds between sulfone O atoms and the carbazole moiety, resulting in two S(6) rings. In the crystal, the nitrated benzene rings are linked via C—HO interactions forming infinite C(7) chains along [100]. The crystal packing is also characterized by C—Hπ interactions, which result in inversion dimers.
organic compounds
Open access
In the title compound, C25H15FN2O6S, the carbazole ring system is essentially planar, with a maximum deviation of 0.1534 (16) Å for the C atom connected to the 4-fluoro-2-nitrophenyl ring. It is almost orthogonal to the phenylsulfonyl and nitrophenyl rings, making dihedral angles of 88.45 (8) and 79.26 (7)°, respectively. The molecular structure is stabilized by O—HO and C—HO hydrogen bonds, which generate three S(6) ring motifs. In the crystal, molecules are linked by two C—HO hydrogen bonds, which generate C(6) and C(9) chains running in the [100] and [010] directions, respectively, so forming a two-dimensional network lying parallel to (001). There are also supramolecular R43(28) graph-set ring motifs enclosed within these networks.
organic compounds
Open access
In the title compound, C17H14BrNO3S, the phenyl ring makes a dihedral angle of 89.78 (16)° with the plane of the indole ring system. The terminal Br atom and the methyl group are disordered over two sets of sites, with site occupancies of 0.860 (2) and 0.140 (2). In the crystal, molecules are linked into a chain along the b-axis direction by weak C—HO hydrogen bonds. The chains are further linked by C—Hπ interactions, forming layers parallel to the bc plane.
organic compounds
Open access
In the title compound, C28H24N2O7S, the carbazole system is essentially planar, with a maximum deviation of 0.0644 (19) Å for the C atom connected to the 4,5-dimethoxy-2-nitrophenyl group. The dihedral angle between the carbazole moiety and the dimethoxy-substituted nitrophenyl ring is 58.55 (7)°. The sulfonyl group forms two intramolecular C—HO bonds with the adjacent carbazole system, forming two cyclic S(6) motifs. In the crystal, molecules are linked along the a axis in bands consisting of cyclic R33(15) motifs through two further C—HO hydrogen bonds.
organic compounds
Open access
In the title compound, C28H22N2O8S, the carbazole ring system is roughly planar, with a maximum deviation of 0.084 (3) Å for the C atom connected to the 4,5-dimethoxy-2-nitrophenyl ring. The dihedral angle between the carbazole system and the dimethoxy-substituted nitrophenyl ring is 57.05 (10)°. The aldehyde C atom deviates by 0.164 (5) Å from its attached carbazole ring system. The molecular structure is stabilized by C—HO interactions which generate two S(6) and one S(7) ring motif. In the crystal, molecules are linked by C—HO hydrogen bonds, forming R33(15) ring motifs, which are further crosslinked by R32(19) ring motifs, resulting in (002) layers. The crystal packing also features C—Hπ interactions.
research communications
Open access
The hydroxy group in this carbazole derivative is involved in an intramolecular O—HO hydrogen bond, which generates an S(6) graph-set motif. In the crystal, pairs of C—HCl hydrogen bonds link molecules into inversion dimers with an R22(26) motif. Weak C—HO interactions further link these dimers into ribbons propagating in [100].
organic compounds
Open access
In the title compound, C26H19BrN2O5S, the carbazole tricycle is essentially planar, with the largest deviation being 0.126 (3) Å for the C atom connected to the nitrophenyl group. The carbazole moiety is almost orthogonal to the benzene rings of the adjacent phenylsulfonyl and nitrophenyl groups, making dihedral angles of 85.43 (15) and 88.62 (12)°, respectively. The molecular conformation is stabilized by two C—HO hydrogen bonds involving the sulfone group, which form similar six-membered rings. In the crystal, molecules symmetrically related by a glide plane are linked in C(6) chains parallel to [001] by C—HO hydrogen bonds formed with the participation of the nitro group. The chains are reinforced by additional C—Hπ interactions.
organic compounds
Open access
The asymmetric unit of the title compound, C49H36O6·CHCl3, contains half an organic molecule, the complete molecule being generated by the operation of a crystallographic twofold rotation axis, and half a highly disordered chloroform molecule. The contribution to the diffraction pattern of the latter was removed using the program SQUEEZE in PLATON [Spek (2009). Acta Cryst. D65, 148–155]; the unit-cell characteristics take into account the presence of CHCl3. The dihedral angles between the planes of the naphthalene ring system and the methoxybenzene rings are 71.05 (7) (syn to the central C=O group) and 57.27 (6)° (anti to the central C=O group). In the crystal, molecules are linked by C—HO interactions, generating C(12) chains running parallel to the b axis.
data reports
Open access
The title compound, C28H18O2S, is composed of a naphthalene ring system fused with a benzothiophene ring and attached to two phenyl rings. The phenyl rings make dihedral angles of 70.92 (8) and 79.23 (8)° with the essentially planar naphthalene ring system (r.m.s. deviation = 0.031 Å). There is an intramolecular C—Hπ interaction present. In the crystal, molecules are linked by C—HO hydrogen bonds which generate C(7) zigzag chains running parallel to [10-1]. The chains are linked via further C—Hπ interactions, forming a three-dimensional structure.