C18H20N6O4, monoclinic, Pc, a = 4.4412(8) Å, b = 14.100(3) Å, c = 15.206(3) Å, β = 95.920(4)°, V = 947.1(3) Å3, Z = 2, Rgt(F) = 0.0352, wRref(F2) = 0.0770, T = 296.15 K.

No abstract

The title compound, C16H14N8O2, was prepared by a condensation reaction between the dimethyl ester of pyrazine-2,3-dicarboxylic acid and an excess of 2-(aminomethyl)pyrazine. The molecule is approximately V-shaped with the central pyrazine ring joined through amide linkages to two pyrazin-2-ylmethyl substituents. In the crystal, molecules are linked by N—H...O, N—H...N and C—H...O hydrogen bonds, forming a three-dimensional framework.