2-(4,5-Di­chloro-2-nitro­phen­yl)-4-meth­oxy-3-methyl-9-phenyl­sulfon­yl-9H-carbazole

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—H...O inter­actions, which generate two S(6) ring motifs. In the crystal, mol­ecules are linked by C—Cl...O halogen bonds [3.016 (3) Å, 166.63 (5)°], which generate infinite C(8) chains running parallel to [010].

2-(4-Chloro-2-nitro­phen­yl)-4-meth­oxy-9-phenyl­sulfonyl-9H-carbazole-3-carbaldehyde

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—H...O 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—H...O inter­actions forming infinite C(7) chains along [100]. The crystal packing is also characterized by C—H...π inter­actions, which result in inversion dimers.

Methyl 3′-benzyl-4′-(2,4-di­chloro­phen­yl)-1′-methyl-2-oxo­spiro­[indoline-3,2′-pyrrolidine]-3′-carboxyl­ate

In the title compound, C₂₇H₂₄Cl₂N₂O₃, the indole ring system is essentially planar, with a maximum deviation of 0.082 (2) Å for the carbonyl C atom. It makes a dihedral angle of 88.53 (6)° with the mean plane of the 4-methyl­pyrrolidine ring, which adopts an envelope conformation with the N atom at the flap position. The mol­ecular structure is stabilized by intra­molecular C—H...O hydrogen bonds, which generate S(6) and S(7) ring motifs, and an intra­molecular π–π inter­action involving the benzyl and di­chloro-substituted benzene rings [centroid–centroid distance = 3.6291 (11) Å]. In the crystal, mol­ecules are linked via N—H...O hydrogen bonds, forming C(7) chains running parallel to [10-1].

2-(4,5-Dimeth­oxy-2-nitro­phen­yl)-4-meth­oxy-3-methyl-9-phenyl­sulfonyl-9H-carbazole

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—H...O 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—H...O hydrogen bonds.

Methyl 3′-(2,5-di­methyl­benz­yl)-1′-methyl-2-oxo-4′-phenyl­spiro­[indoline-3,2′-pyrrolidine]-3′-carboxyl­ate chloro­form monosolvate

In the title solvate, C₂₉H₃₀N₂O₃·CHCl₃, the dihedral angle between the indole ring system (r.m.s. deviation = 0.050 Å) and the 4-methyl­pyrrolidine ring is 88.88 (8)°. The latter ring adopts an envelope conformation with the N atom as the flap. Its mean plane makes dihedral angles of 86.94 (11) and 42.08 (9)° with the phenyl and di­methyl­benzene rings, respectively. The mol­ecular conformation is stabilized by intra­molecular C—H...O hydrogen bonds, which generate S(6) and S(9) ring motifs. The chloro­form solvent mol­ecule is linked to the organic mol­ecule by a C—H...O hydrogen bond involving the carbonyl O atom of the carboxyl­ate group. In the crystal, mol­ecules are linked via bifurcated N—H...(N,O) and C—H...O hydrogen bonds, forming chains propagating along [001].

2-(4,5-Dimeth­oxy-2-nitro­phen­yl)-4-meth­oxy-9-phenyl­sulfonyl-9H-carbazole-3-carbaldehyde

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—H...O inter­actions which generate two S(6) and one S(7) ring motif. In the crystal, mol­ecules are linked by C—H...O 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—H...π inter­actions.

3,10,14,21-Tetra­kis(4-meth­oxy­phen­yl)penta­cyclo­[11.8.0.0^2,11.0^4,9.0^15,20]henicosa-1(21),2,4(9),5,7,10,13,15(20),16,18-decaen-12-one chloro­form monosolvate

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—H...O inter­actions, generating C(12) chains running parallel to the b axis.