Acta Cryst. (2005). E61, o1617-o1619  [ doi:10.1107/S1600536805013334 ]

2,9-Dichloroquino[2,3-b]acridine-7,14(5H,12H)-dithione dimethylformamide disolvate

T. Senju, T. Hoki and J. Mizuguchi

Abstract: The title compound, C₂₀H₁₀Cl₂N₂S₂·2C₃H₇NO, is a dimethylformamide (DMF) disolvate of DTQ-Cl, which is a thionated pigment derivative of 2,9-dichloroquinacridone. The DTQ-Cl molecule is centrosymmetric and entirely planar. Two DMF molecules are hydrogen-bonded to DTQ-Cl, through the NH group of DTQ-Cl and the O atom of DMF. The molecular plane of DMF is twisted with respect to the skeleton of DTQ-Cl by 21.4 (1)°.

Online 14 May 2005

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