ABSTRACT
In the title compound, C12H11NO4, the dihedral angle between the indole ring system (r.m.s. deviation = 0.019â Å) and the oxirane ring is 88.8â (2)°. The oxirane O atom and the bridging ester O atom are in an approximate syn conformation [O-C-C-O = -25.4â (3)°] In the crystal, inversion dimers linked by pair of C-Hâ¯O hydrogen bonds generate R 2 (2)(8) loops, where the C-H donor group forms part of the oxirane ring. A second C-Hâ¯O inter-action arising from one of the C-H groups of the benzene ring links the dimers into [001] double chains.
ABSTRACT
The title compound, C12H11NO3, is essentially planar, with the mean plane of the acetate side chain [-C-C(=O)-O-C] being inclined to the mean plane of the indole ring system by 12.49â (7)°. The five- and six-membered rings of the indole group are almost coplanar, making a dihedral angle of 1.76â (8)°. The conformation about the C=C bond is E and there is an intra-molecular C-Hâ¯O hydrogen bond present. In the crystal, mol-ecules are linked by pairs of C-Hâ¯O hydrogen bonds forming inversion dimers, with an R 2 (2)(16) ring motif. The dimers are linked by a second pair of C-Hâ¯O hydrogen bonds, enclosing R 2 (2)(16) ring motifs, forming ribbons lying parallel to (-114). The ribbons are linked via C-Hâ¯π inter-actions, forming a three-dimensional structure.
ABSTRACT
In the title compound, C18H15N3O3, the dihedral angle between the mean planes of the quinoline and indole ring systems [r.m.s. deviations = 0.189â (2) and 0.027â (2)â Å, respectively] is 88.65â (5)°. The cyclo-hexene ring of the quinoline ring system adopts an envelope conformation with the central -CH2- C atom as the flap. In the crystal, mol-ecules are linked by two pairs of N-Hâ¯O hydrogen bonds, forming inversion dimers, and enclosing R 2 (2)(14) ring motifs. This arrangement results in the formation of chains propagating along [100].
