2-Nitro-4'-(N,N-diethylamino)azobenzene, C₁₆H₁₈N₄O₂

The title molecule has trans geometry about the azo linkage. The dihedral angle between the two phenyl rings is 47.1 (5)° and the twist angle for the nitro group is 24.4 (3)°. The effect of the nitro group on the geometry of the molecule is discussed. In this crystal structure, the moleculs pack through π...π and van der Waals interactions.

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