Bandrowski's Base

Molecules of the title compound, N,N''-(2,5-diamino-2,5-cyclohexadiene-1,4-diylidene)bis(1,4-benzenediamine), C₁₈H₁₈N₆, lie across crystallographic inversion centres. The angle between the central ring and each of the terminal rings is 60.2 (5)°. Hydrogen bonding links molecules into chains along b.

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