15a,15b-Dihydro-5H,7H,9H,14H,17H-15,16-methanodibenzo[e]diazepino[2,3-c;3′,2′-e]imidazole-7,18-dione

Abstract

The title compound, C20H18N4O2, is a molecular clip based on the glycoluril framework. The two benzene rings are each fused to a seven-membered ring; these rings bind four of the N atoms from separate rings of the glycoluril system to form the sidewalls of the molecular clip. The crystal packing is stabilized by non-classical C—H...O hydrogen bonds. There are no π–π stacking interactions in the crystal structure. The molecule provides a model with approximate non-crystallographic C 2v symmetry.