Hydrogen-bonded chains in 5-methyl-2-trifluoromethyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one and hydrogen-bonded chains of rings in 5-amino-3-trifluoromethyl-1H-1,2,4-triazole–5-methyl-2-trifluoromethyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one (1/1), the co-crystal of a reaction product and one of its precursors
Abstract:In the title compounds, C7H5F3N4O, (I), and C3H3F3N4·C7H5F3N4O, (II), all of the molecular components exhibit some polarization of their molecular–electronic structures. The molecules in (I) are linked into simple C(6) chains, while in (II), the components are linked by a combination of two-centre N—H…N and N—H…O, and three-centre N—H…(O,N) hydrogen bonds into chains containing R (5), R (6) and R (8) rings.
Document Type: Research Article
Publication date: October 1, 2004