Acta Cryst. (2005). C61, o398-o403  [ doi:10.1107/S0108270105013260 ]

Two isomeric pairs of dihydrobenzopyrazoloquinazolines: centrosymmetric dimers, chains and sheets built from C-HN and C-H(arene) hydrogen bonds and - stacking interactions

J. Portilla, J. Quiroga, J. Cobo, M. Nogueras, J. N. Low and C. Glidewell

Formula: C₂₁H₁₇N₃ and C₂₂H₁₉N₃

Online 20 May 2005

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