Acta Crystallographica Section C

Crystal Structure Communications

Volume 58, Part 2 (February 2002)

Acta Cryst. (2002). C58, o103-o105 [doi:10.1107/S0108270101020625]

Supramolecular hydrogen-bonded hexamers in two 5-aryl-3-methyl-1-phenyl-1,6,7,8-tetrahydropyrazolo[3,4-b][1,4]diazepines

J. N. Low, J. Cobo, B. Insuasty, H. Insuasty, M. Nogueras and A. Sánchez

Abstract: In both title compounds, i.e. 3-methyl-1,5-diphenyl-1,6,7,8-tetrahydropyrazolo[3,4-b][1,4]diazepine, C₁₉H₁₈N₄, (I), and 5-(4-chlorophenyl)-3-methyl-1-phenyl-1,6,7,8-tetrahydropyrazolo[3,4-b][1,4]diazepine, C₁₉H₁₇ClN₄, (II), an N-HN hydrogen bond links six molecules to form an R(30) ring. Compound (I) crystallizes in the R $\overline 3$ space group and (II) crystallizes in P $\overline 1$ with three molecules in the asymmetric unit. The molecule of (I) contains a disordered seven-membered ring.

Formula: C₁₉H₁₈N₄ and C₁₉H₁₇ClN₄

Online 23 January 2002


	Structure factor file (CIF format) (160.9 kbytes) Contains datablock I

	Structure factor file (CIF format) (548.2 kbytes) Contains datablock II

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