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Acta Cryst. (2013). E69, o1298  [ doi:10.1107/S1600536813019740 ]

Thiophene-2-carbonyl azide

G. C. Hsu, L. M. Singer, D. B. Cordes and M. Findlater

Abstract: The title compound, C5H3N3OS, is almost planar (r.m.s. deviation for the ten non-H atoms = 0.018 Å) and forms an extended layer structure in the (100) plane, held together via hydrogen-bonding interactions between adjacent molecules. Of particular note is the occurrence of RC-H...N-=N+=NR interactions between an aromatic C-H group and an azide moiety which, in conjunction with a complementary C-H...O=C interaction, forms a nine-membered ring.

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