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The title compound, C14H12N2O2, is non-planar. The dihedral angle between the two benzene rings is 32.1 (2)° and the nitro group is at an angle of 13.2 (2)° with respect to its attached benzene ring. In the crystal structure, the mol­ecules are stacked through π–π inter­actions. The stacks are arranged through π–π and C—H⋯π inter­actions, forming chains along [001], which are further connected by C—H⋯O and C—H⋯N hydrogen bonds, forming networks along [100]. The networks are connected by C—H⋯O hydrogen bonds along [010]. [ABSTRACT FROM AUTHOR]

The non-planar title mol­ecule, C15H10Cl2O, contains two benzene rings linked by a –CH=CH—C(=O)– bridge. In the crystal structure, the mol­ecules are paired through π–π inter­actions and the pairs are connected to each other via hydrogen-bonding inter­actions. [ABSTRACT FROM AUTHOR]