Abstract
The crystal structure of 4-aminopyridinium 3,5-dinitrobenzoate, C12H10O6N4, has been determined by single-crystal X-ray diffraction technique. The title compound crystallizes in the monoclinic sp. gr. P2(1)/n with the unit cell parameters: a = 7.4726(3)angstrom, b = 23.0898(9) angstrom, c = 8.0744(4) angstrom, V = 1338.64(10) angstrom(3), Z = 4. The asymmetric unit of the compound consists of one 3,5-dinitrobenzoate anion and 4-aminopyridine cation. The adjacent anions and cations are linked through two N-H center dot center dot center dot O hydrogen bonds, N2-H2A center dot center dot center dot O5 and N-2-H2B center dot center dot center dot O6, to form an infinite chain of anions and cations, extended along the [010] direction.