2-Amino-5-trifluoromethyl-1, 3, 4-thiadiazole and a redetermination of 2-amino-1, 3, 4-thiadiazole, both at 120 K: chains of edge-fused R22 (8) and R44 (10) …

N Boechat, SB Ferreira, C Glidewell, JN Low…

Index: Boechat, Nubia; Ferreira, Sabrina B.; Glidewell, Christopher; Low, John N.; Skakle, Janet M.S.; Wardell, Solange M.S.V. Acta Crystallographica Section C: Crystal Structure Communications, 2006 , vol. 62, # 1 p. o42-o44

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Citation Number: 12

Abstract

Molecules of 2-amino-5-trifluoromethyl-1, 3, 4-thiadiazole, C3H2F3N3S, are linked by two independent N—H⋯ N hydrogen bonds into sheets of alternating R22 (8) and R66 (20) rings, while the molecules of the unsubstituted 2-amino-1, 3, 4-thiadiazole, C2H3N3S, are linked, again by two independent N—H⋯ N hydrogen bonds, but into chains of edge-fused R22 (8) and R44 (10) rings.

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