9-Propylidenehydrazino-10-acridinium Thiocyanate at 173K

The acridinium ring in the title compound, C₁₆H₁₆N₃⁺.SCN^-, deviates slightly from planarity; the angle between the planes of the outer rings is 6.20 (14)°. There are significant distortions of the hydrazine side chain caused by steric interactions with the acridinium ring. The cations stack into columns with short interplanar spacings and hydrogen bonds cross-link the stacks via the anions.

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