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. 2014 Aug 16;70(Pt 9):o1005-6.
doi: 10.1107/S160053681401825X. eCollection 2014 Sep 1.

Crystal structure of 1-ethyl-pyrazolo[3,4-d]pyrimidine-4(5H)-thione

Mohammed El Fal  1 , Youssef Ramli  2 , El Mokhtar Essassi  1 , Mohamed Saadi  3 , Lahcen El Ammari  3
Affiliations

Crystal structure of 1-ethyl-pyrazolo[3,4-d]pyrimidine-4(5H)-thione

Mohammed El Fal et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title compound, C7H8N4S, the methyl C atom is displaced by 1.232 (7) Å from the mean plane of the pyrazolo-[3,4-d]pyrimidine ring system (r.m.s. deviation = 0.007 Å). The N-N-C-Cm (m = meth-yl) torsion angle is -60.3 (6)°. In the crystal, mol-ecules are linked by N-H⋯S hydrogen bonds, generating [010] chains, which are reinforced by C-H⋯N inter-actions. The chains are cross-linked by weak C-H⋯S hydrogen bonds, generating (001) sheets.

Keywords: biological activity; crystal structure; hydrogen bonding; pyrazolo­[3,4-d]pyrimidine.

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Figures

Fig. 1.
Fig. 1.
Molecular structure of the title compound with displacement ellipsoids drawn at the 50% probability level.
Fig. 2.
Fig. 2.
Structure projection along (0 1 1) of the title compound, showing molecules linked through hydrogen bonds (dashed lines).
See this image and copyright information in PMC

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References

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