Bis(2,4-dinitro-phen-yl)sulfane.

In the title compound, C(12)H(6)N(4)O(8)S, the dinitro-phenyl rings subtend an angle of 78.46 (13) °. In the crystal, mol-ecules are linked by weak C-H⋯O hydrogen bonds leading to the formation of a two-dimensional network lying parallel to the bc plane.

Trimethyl-ammonium 2,6-dioxo-5-(2,4,6-trinitro-phen-yl)-1,2,3,6-tetra-hydro-pyrimidin-4-olate.

IN THE TITLE BARBITURATE SALT (TRIVIAL NAME: trimethyl-ammonium 2,4,6-trinitro-phenyl-barbiturate), C(3)H(10)N(+)·C(10)H(4)N(5)O(9) (-), the asymmetric unit contains two sets of anion-cation moieties. The dihedral angle between the rings in the anions are 44.0 (3) and 45.

N,N-Diethyl-anilinium 2,4-dioxo-5-(2,4,6-trinitro-phen-yl)-1,2,3,4-tetra-hydro-pyrimi-din-6-olate.

In the crystal structure of the title mol-ecular salt, C(10)H(16)N(+)·C(10)H(4)N(5)O(9) (-), the components are linked through a N-H⋯O hydrogen bonds. R(2) (2)(8) ring motifs are formed between inversion-related barbiturate residues. Two intra-moleculer N-H⋯O hydrogen bonds are observed in the anion.

N,N-Diethyl-2-hy-droxy-ethanaminium 2,6-dioxo-5-(2,4,6-trinitro-phen-yl)-1,2,3,6-tetra-hydro-pyrimidin-4-olate dihydrate.

In the title mol-ecular salt, C(6)H(16)NO(+)·C(10)H(4)N(5)O(9) (-)·2H(2)O, which crystallizes as a dihydrate, O-H⋯O hydrogen bonds link the barbiturate anion, the ethanaminium cation and the water mol-ecules of crystallization. The dihedral angle between the rings in the anion is 43.71 (8)°.