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, 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, C17H17N O4S, the quinoline ring system is nearly planar, with a maximum deviation of 0.0496â (16)â Å. A weak intra-molecular C-Hâ¯O inter-action is observed. In the crystal, C-Hâ¯O, S-Hâ¯N and π-π stacking inter-actions between the fused benzene ring of quinoline and the pyridine moieties [shortest centroid-centroid distance = 3.6754â (11)â Å] are observed. Inversion-related weak C-Hâ¯O inter-molecular inter-actions diagonally along [010], with R 2 (2)(10) ring motifs, and S-Hâ¯N inter-molecular inter-actions diagonally along [100], with R 2 (2)(8) ring motifs, are present, forming a three-dimensional network structure. No classical hydrogen bonds are observed.
RESUMO
In the title compound, C15H14FNO3S2, the 2H-chromene ring system is close to being planar (r.m.s. deviation = 0.024â Å) and the morpholine ring adopts a chair conformation. The dihedral angle between the 2H-chromene ring system and the morpholine ring (all atoms) is 88.21â (11)°. In the crystal, inversion dimers linked by pairs of very weak C-Hâ¯F hydrogen bonds generate R 2 (2)(8) loops; C-Hâ¯O hydrogen bonds connect the dimers into [010] chains. Weak aromatic π-π stacking inter-actions between the pyran rings of the chromene systems [centroid-centroid distance = 3.6940â (16)â Å] are also observed.