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 R(2)(2)(8) and R(4)(4)(10) rings, and sheets of R(2)(2)(8) and R(6)(6)(20) rings

Nubia Boechat; Sabrina B Ferreira; Christopher Glidewell; John N Low; Janet M S Skakle; Solange M S V Wardell

doi:10.1107/S0108270105040126

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 R(2)(2)(8) and R(4)(4)(10) rings, and sheets of R(2)(2)(8) and R(6)(6)(20) rings

Acta Crystallogr C. 2006 Jan;62(Pt 1):o42-4. doi: 10.1107/S0108270105040126. Epub 2005 Dec 24.

Authors

Nubia Boechat¹, Sabrina B Ferreira, Christopher Glidewell, John N Low, Janet M S Skakle, Solange M S V Wardell

Affiliation

¹ Complexo Tecnológico de Medicamentos Farmanguinhos, Avenida Comandante Guaranys 47, Jacarepaguá, Rio de Janeiro, RJ, Brazil.

PMID: 16397341
DOI: 10.1107/S0108270105040126

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 R(2)(2)(8) and R(6)(6)(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 R(2)(2)(8) and R(4)(4)(10) rings.