catena-Poly[[silver(I)-μ-N-[(pyridin-2-yl)meth-yl]pyridine-3-amine-κ(2) N:N'] hexa-fluorido-phosphate]

In the title polymeric complex, {[Ag(C11H11N3)]PF6} n , the Ag(I) ion is two-coordinated in a nearly linear coordination geometry [N-Ag-N = 175.98 (9)°] by two pyridine N atoms from two symmetry-related N-[(pyridine-2-yl)meth-yl]pyridine-3-amine ligands. Each Ag(I) ion is bridged by the ligands, forming a helical chain propagating along the b-axis direction. The right- and left-handed helical chains are alternately arranged via Ag⋯Ag [3.2639 (5) Å] and π-π stacking inter-actions [centroid-centroid distance = 3.523 (1) Å], resulting in the formation of a two-dimensional supra-molecular network extending parallel to (101). Weak Ag⋯F inter-actions [longest Ag⋯F inter-action = 3.153 (2) Å], as well as N-H⋯F and C-H⋯F hydrogen-bonding inter-actions, occur between the helical chains and the anions.