The Charge-Transfer Complex 4-(2-Hydroxyethyl)carbazole–2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (1/1) (HEK–DDQ)

The planar donor HEK and the nearly planar acceptor DDQ dimerize to form a face-to-face alternately arranged π–π charge-transfer complex, C₁₄H₁₃NO·C₈Cl₂N₂O₂.

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