2-Aminopyridinium 5-(5-chloro-2,4-dinitrophenyl)-1,3-dimethyl-2,4-dioxo-1, 2,3,4-tetrahydropyrimidin-6-olate

Abstract

In the title molecular salt, C5H7N2+·C12H8ClN4O7-, the dihedral angle between the aromatic rings of the anion is 51.88 (6)°. One of the nitro groups is disordered over two orientations in a 0.710 (6):0.290 (6) ratio. In the crystal, the cations and anions are linked by N-H⋯O hydrogen bonds, generating infinite ribbons extending along [100] which incorporate R44(22) ring motifs. Weak C-H⋯O interactions also occur.