2-Meth-oxy-anilinium 3-hy-droxy-2,4,6-trinitro-phenolate.

The cation and anion of the title mol-ecular salt, C(7)H(10)NO(+)·C(6)H(2)N(3)O(8) (-), are linked via an N-H⋯O hydrogen bond. An intra-molecular O-H⋯O hydrogen bond is also found in the anion. In the crystal, the anions self-assemble via O-H⋯O hydrogen bonds, forming a C(9) supra-molecular chain the b axis.

Triethyl-ammonium 2,4-dinitro-phenyl-barbiturate.

In the title mol-ecular salt [systematic name: triethylammonium 5-(2,4-dinitrophenyl)-2,6-dioxo-1,2,3,6-tetrahydropyrim-idin-4-olate], C(6)H(16)N(+)·C(10)H(5)N(4)O(7) (-), the cation and anion are linked by an N-H⋯O hydrogen bond. In the crystal, inversion-related barbiturate rings are centrosymmetrically connected through pairs of N-H⋯O hydrogen bonds, forming R(2) (2)(8)R(2) (2)(8) ring motifs.