Acta Cryst. (2006). C62, o364-o368  [ doi:10.1107/S0108270106017598 ]

Four 2-aryl-8,8-dimethyl-6,7,8,9-tetrahydropyrazolo[2,3-a]quinazolin-6-ones: isolated molecules, hydrogen-bonded dimers, and -stacked chains of hydrogen-bonded dimers

S. Cruz, J. Quiroga, J. M. de la Torre, J. Cobo, J. N. Low and C. Glidewell

Formula: C₁₉H₁₈ClN₃O, C₂₀H₂₁N₃O₂, C₂₄H₂₀ClN₃O and C₁₉H₁₉N₃O·H₂O

Online 31 May 2006

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