Abstract
The title compound, C 12 H 12 N 2 O 3 , is composed of a nitroanilino moiety and a cyclic α,β-unsaturated ketone moiety. The nitro group is oriented anti to the carbonyl group and the cyclic ketone ring is in a puckered conformation with C9 as the out-of-plane atom. The shortened C11-N2 and C7-C12 bond lengths suggest that the amino group is conjugated with the α,β-unsaturated ketone group. Intermolecular hydrogen bonds between the carbonyl O atom and the amino group link the molecules into infinite chains [N-H 0.88(3), H...O i 1.98 (3), N...O i 2.858 (3) A, N-H...O i 175 (1)° ; symmetry code : (i) 1+x,y,z].
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