RESUMO
In the title compound, C18H22N2O4S2, the 2H-chromene ring system is essentially planar (r.m.s. deviation = 0.012â Å). The mol-ecular conformation is stabilized by a C-Hâ¯O hydrogen bond. In the crystal, N-Hâ¯S and C-Hâ¯O hydrogen bonds occur, the former enclosing an R (2) 2(22) ring motif, and lead to the formation of a two-dimensional slab-like network lying parallel to (10-1). π-π inter-actions are observed between inversion-related aromatic rings [shortest centroid-centroid distance = 3.6300â (11)â Å].
RESUMO
In the title compound, C18H18N2O, the morpholine ring adopts a chair conformation with the exocyclic N-C bond in an equatorial orientation. The dihedral angles between the central benzene ring and the morpholine ring (all atoms) and the cyano-benzene ring are 87.87â (7) and 52.54â (7)°, respectively. No significant inter-molecular inter-actions are observed in the crystal structure.
RESUMO
In the title compound, C13H8BrClOS, the thienyl ring is not coplanar with the benzene ring, their planes forming a dihedral angle of 13.2â (4)°. In the crystal, mol-ecules stack along the a axis, with the inter-planar separation between thienyl rings and between benzene rings being 3.925â (6)â Å. The sample is an inversion twin.
RESUMO
In the title compound, C18H15NO3, the isoxazole moiety adopts a shallow envelope conformation, with the C atom bearing the OH group displaced by 0.148â (1)â Å from the mean plane through the other four atoms. The mean plane of this ring (all atoms) subtends dihedral angles of 87.19â (6) and 15.51â (7)° with the benzo-furan ring system (r.m.s. deviation = 0.007â Å) and the 4-methylphenyl ring, respectively. In the crystal, mol-ecules are linked by O-Hâ¯N hydrogen bonds, generating [001] C(5) chains, with adjacent mol-ecules in the chain related by c-glide symmetry. Weak C-Hâ¯O inter-actions link the chains into a three-dimensional network.