Crystal structure and Hirshfeld analysis of diethyl (2E,2′E)-3,3′-[1-(8-phenyl­isoquinolin-1-yl)-1H-indole-2,7-di­yl]diacrylate

The mol­ecule of title compound, C(33)H(28)N(2)O(4), comprises an indole unit (A), an iso­quinoline moiety (B) and a benzene ring (C). The dihedral angles between these groups are A/B = 57.47 (1), A/C = 18.48 (1) and B/C = 57.97 (1) °. The ethyl acrylate group at the 2-position is nearly co-planar with the indole unit [3.81 (2)°], while that at the 7-position is distinctly non-coplanar [52.64 (1)°]. Intra­molecular π–π inter­actions between the indole unit and benzene ring help to establish the clip-shaped conformation of the mol­ecule. In the crystal, the mol­ecules are assembled into two-dimensional layers via C—H⋯O hydrogen bonds, π–π and C—H⋯π inter­actions. Hirshfeld surface analysis illustrates that the greatest contributions are from H⋯H (63.2%), C⋯H/H⋯C (15.4%) and O⋯H/H⋯O (14.8%) contacts. The terminal C(2)H(5) group of one of the ethyl acrylate side chains is disordered over two positions of equal occupancy.