Date Published: June 01, 2011
Publisher: International Union of Crystallography
Author(s): Manickam Buvaneswari, Doraisamyraja Kalaivani.
In the title molecular salt, C6H16NO+·C10H4N5O9−·2H2O, which crystallizes as a dihydrate, O—H⋯O hydrogen bonds link the barbiturate anion, the ethanaminium cation and the water molecules of crystallization. The dihedral angle between the rings in the anion is 43.71 (8)°. In the crystal, an R22(8) ring motif hydrogen-bonding pattern is also found involving inversion-related barbiturate rings with N—H⋯O hydrogen bonds. As a result of the various hydrogen bonds an infinite two-dimensional network, propagating in (10), is formed.
For the anti-epileptic properties of barbiturates, see: Tripathi (2009 ▶); Kalaivani & Malarvizhi (2009 ▶); Kalaivani et al. (2008 ▶). For graph-set analysis of hydrogen bonds, see: Bernstein et al. (1995 ▶).