Three isomeric N-(nitrophenyl)succinimides: isolated molecules, hydrogen-bonded sheets and a hydrogen-bonded three-dimensional framework.

Molecules of N-(2-nitrophenyl)succinimide, C10H8N2O4, are linked into sheets by a combination of C-H...O and C-H...pi(arene) hydrogen bonds. Molecules of N-(3-nitrophenyl)succinimide are linked into a three-dimensional framework by a combination of a two-centre C-H...O hydrogen bond and a three-centre C-H...(O)2 hydrogen bond. Molecules of N-(4-nitrophenyl)succinimide which lie across twofold rotation axes in space group C2/c, participate in no direction-specific intermolecular interactions.