RESUMO
The title compound, C10H8BrNO2, is almost planar (r.m.s. deviation for the non-H atoms = 0.031â Å) and the conformation across the C=N bond is trans. Further, the O atom of the benzo-furan ring is syn to the N atom of the oxime group. In the crystal, inversion dimers linked by pairs of O-Hâ¯N hydrogen bonds generate R 2 (2)(6) loops. Very weak aromatic π-π stacking inter-actions [centroid-centroid separations = 3.9100â (12) and 3.9447â (12)â Å] are also observed.
RESUMO
In the title compound, C15H17N3O, the aldehyde group is twisted relative to the quinoline group by17.6 (2)° due to the presence of a bulky piperazinyl group in the ortho position. The piperazine N atom attached to the aromatic ring is sp (3)-hybridized and the dihedral angle between the mean planes through the the six piperazine ring atoms and through the quinoline ring system is 40.59â (7)°. Both piperazine substituents are in equatorial positions.