A monoclinic polymorph of 3,7,7-trimeth­yl-1-phen­yl-5,6,7,8-tetra­hydro-1H-pyrazolo[3,4-b]quinolin-5-one

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

doi:10.1107/S0108270105016501

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 3
Part of the crystal structure of polymorph (Ia), showing a centrosymmetric π-stacked dimer. For the sake of clarity, H atoms have all been omitted. Atoms marked with an asterisk (*) are at the symmetry position (1 − x, 1 − y, 1 − z).

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 61| Part 7| June 2005| Pages o442-o444

doi:10.1107/S0108270105016501

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