organic compounds
Open access
In the title compound, C40H29N3O3S, the pyran ring adopts a sofa conformation, the thiazolidine ring adopts a twisted conformation and the pyrrolidine ring adopts an envelope conformation with the N atom as the flap. The pyrazole ring is essentially planar [maximum deviation = 0.002 (2) Å] and forms dihedral angles of 4.8 (1) and 39.0 (1)°, respectively, with the benzene rings attached to the N and C atoms. The acenapthylene ring system is approximately planar [maximum deviation = 0.058 (2) Å] and forms dihedral angles of 85.9 (1) and 48.5 (1)°, respectively, with the pyrollothiazole and chromene ring systems. The molecular conformation is stabilized by three weak intramolecular C—HO hydrogen bonds, which generate one S(8) and two S(6) ring motifs. In the crystal, pairs of C—HO hydrogen bonds link centrosymmetrically related molecules into dimers, generating R22(14) ring motifs. The crystal packing also features pairs of C—Hπ interactions, which link the dimers into a supramolecular chain along the b axis.
organic compounds
Open access
In the title compound, C18H17NO3S, the seven-membered thiazepine ring adopts a slightly distorted sofa conformation. The dihedral angle between the mean plane of the benzothiazepine ring system and the benzene ring is 5.9 (1)°. The molecular conformation is stabilized by an intramolecular C—HS hydrogen bond, which generates an S(7) ring motif. In the crystal, N—HO and C—HO hydrogen bonds link inversion-related molecules into dimers, incorporating R12(6) and R22(8) ring motifs; the acceptor O atom is bifurcated. These dimers are further linked by C—HO hydrogen bonds, forming supramolecular tapes running along the a axis. These are connected into the three-dimensional architecture by C—Hπ interactions.
organic compounds
Open access
In the title compound, C16H11Cl2NOS, the seven-membered thiazepine ring adopts a distorted twist-boat conformation. The dihedral angle between the mean plane of the benzothiazepine ring system and the benzene ring is 78.6 (1)°. The molecular conformation is stabilized by a weak intramolecular C—HCl hydrogen bond, which generates an S(5) ring motif. In the crystal, pairs of N—HO hydrogen bonds link inversion-related molecules into dimers, generating R22(8) ring motifs. The crystal packing also features alternating π–π interactions between benzothiazepine benzene rings [inter-centroid distance = 3.740 (3) Å] and dichlorobenzene rings [inter-centroid distance = 3.882 (3) Å] to consolidate a three-dimensional architecture.