(2E)-2-[2-(4-Chloro­phen­yl)hydrazin-1-yl­idene]-4,4,4-trifluoro-3-oxobutanal

The title compound, C(10)H(6)ClF(3)N(2)O(2), was synthesized by coupling 4-dimethyl­amino-1,1,1-trifluoro­but-3-en-2-one with 4-chloro­benzene­diazo­nium chloride. It crystallizes with two mol­ecules in the asymmetric unit, which form two similar centrosymmetric dimers via hydrogen bonds. Extensive electron delocalization and intra­molecular N—H⋯O hydrogen bonds are responsible for a planar conformation of the mol­ecules (maximum deviations = 0.010 and −0.015 Å for the two molecules). In addition to hydrogen bonds, π–π stacking inter­actions with centroid–centroid distances of 3.604 (2) and 3.583 (2) Å contribute to the stability of the crystal structure.