Synthesis, crystal structure and Hirshfeld surface analysis of 1-[3-(2-oxo-3-phenyl-1,2-di­hydro­quinoxalin-1-yl)prop­yl]-3-phenyl-1,2-di­hydro­quinoxalin-2-one

In the title compound, the di­hydro­quinoxaline units are both essentially planar and the dihedral angle between their mean planes is 64.82 (2)°. In the crystal, C—H⋯O hydrogen bonds form chains along the b-axis direction which are joined by π-stacking and C—H⋯π(ring) inter­actions into the full three-dimensional network structure.

In the title compound, C₃₁H₂₄N₄O₂, the di­hydro­quinoxaline units are both essentially planar with the dihedral angle between their mean planes being 64.82 (4)°. The attached phenyl rings differ significantly in their rotational orientations with respect to the di­hydro­quinoxaline planes. In the crystal, one set of C—H⋯O hydrogen bonds form chains along the b-axis direction, which are connected in pairs by a second set of C—H⋯O hydrogen bonds. Two sets of π-stacking inter­actions and C—H⋯π(ring) inter­actions join the double chains into the final three-dimensional structure.