Molecular co-crystals of carboxylic acids. 8. Structure of the 1:1 adduct of 3,5-dinitrobenzoic acid with 3-amino-1H-1,2,4-triazole

C7H3N2O6-.C2H5N4+.2H2O, M(r) = 332.1, triclinic, P1BAR, a = 7.087(5), b = 10.330(6), c = 10.473(7) angstrom, alpha = 111.76(3), beta = 93.55(4), gamma = 95.89 (4)-degrees, V = 704.2 (8) angstrom3, Z = 2, D(x) = 1.566 Mg m-3, lambda(Mo K-alpha) = 0.71073 angstrom, mu = 0.15 mm-1, F(000) = 344, T = 295 K, R = 0.035 for 1656 observed reflections. The compound was prepared in toluene with crystals grown from aqueous ethanol. The two organic molecules associate to form an eight-membered hydrogen-bonded ring [NH...O, 2.88 (1) and 2.67 (1) angstrom], as well as being involved in a hydrogen-bonded network with two water molecules.