Two isomeric pairs of dihydro­benzo­pyrazolo­quinazolines: centrosymmetric dimers, chains and sheets built from C—H⋯N and C—H⋯π(arene) hydrogen bonds and π–π stacking inter­actions

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

doi:10.1107/S0108270105013260

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 7
Part of the crystal structure of (III)

, showing the formation of a [100] chain of edge-fused rings. For clarity, H atoms bonded to C atoms not involved in hydrogen bonding have been omitted. Atoms marked with an asterisk (*), a hash (#) or an ampersand (&) are at the symmetry positions (1 − x, 1 − y, 1 − z), (2 − x, 1 − y, 1 − z) and (−1 + x, y, z), respectively.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 61| Part 6| May 2005| Pages o398-o403

doi:10.1107/S0108270105013260

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