catena-Poly[[(nitrito-kappa O-2,O ')silver(I)]-mu-1,2-bis[1-(pyridin-4-yl)ethylidene]hydrazine-kappa N-2:N ']

The asymmetric unit of the title compound, [Ag(NO2)(C14H14N4)]n, contains half of the repeating formula unit (Z′ = 1/2). The AgI ion lies on a twofold rotation axis. The primary structure consists of a one-dimensional coordination polymer formed by the AgI ions and the bipyridyl azine ligand in which there is an inversion center at the mid-point of the N—N bond. The nitrite anion inter­acts with the AgI ion through a chelating μ2 inter­action involving both O atoms. In the crystal, the coordination chains are parallel and inter­act through Ag⋯π [3.220 (2) A] and π–π [3.489 (3) A] inter­actions.