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Acta Cryst. (2004). C60, o265-o269  [ doi:10.1107/S0108270104004159 ]

Molecular conformation and supramolecular aggregation in two fused pyrazoles: [pi]-stacked R_{\bf 2}^{\bf 2}(6) dimers in 2,8,8-trimethyl-6,7,8,9-tetrahydropyrazolo[2,3-a]quinazolin-6-one, and sheets of alternating R_2^2(12) and R_6^6(48) rings in 3-tert-butyl-4',4'-dimethyl-1-phenyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-b]pyridine-5-spiro-1'-cyclohexane-2',6'-dione

J. N. Low, J. Cobo, J. Mera, J. Quiroga and C. Glidewell

Formula: C13H15N3O and C23H29N3O2

Online 20 March 2004


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