Two polymorphs of trans-[3-(3-nitrophenyl)oxiran-2-yl](phenyl)methanone

Abstract

The title compound, C15H11NO4, crystallizes in two polymorphic forms, centrosymmetric monoclinic and chiral orthorhombic. The geometry of the molecules in the two polymorphs is slightly different, possibly due to intermolecular interactions. There are no classical hydrogen bonding in these two structures. However, a number of C—H...O intermolecular interactions, involving both O atoms of the nitro as well the benzoyl groups, stabilize the crystal structures.

Keywords

• crystal structure
• chalcone oxide
• polymorphism