Hydrogen-bonded chains in isostructural 5-meth­yl-2-(4-methyl­phen­yl)-7,8-dihydro-6H-cyclo­penta­[g]­pyra­zolo­[1,5-a]pyrimidine, 2-(4-chloro­phen­yl)-5-meth­yl-7,8-dihydro-6H-cyclo­penta­[g]pyrazolo[1,5-a]pyrimidine and 2-(4-bromo­phen­yl)-5-meth­yl-7,8-dihydro-6H-cyclo­penta­[g]pyrazolo[1,5-a]pyrimidine, and sheets of π-stacked hydrogen-bonded chains in 2-(4-methoxy­phen­yl)-5-meth­yl-7,8-dihydro-6H-cyclo­penta­[g]­pyrazolo[1,5-a]pyrimidine

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 7
A stereoview of part of the crystal structure of compound (IV)

, showing the formation of a (100) sheet of π-stacked [010] chains. For clarity, H atoms not involved in the motif shown have been omitted.

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CHEMISTRY

ISSN: 2053-2296

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