Crystal structure of an Ag I inter-calation compound: catena -poly[[silver(I)-μ- N -(pyridin-3-ylmeth-yl)pyridin-3-amine-κ 2 N : N '] hexa-fluorido-phosphate aceto-nitrile disolvate].

The asymmetric unit in the title compound, [Ag(C11 H11 N3 )]PF6 ·2CH3 CN or {[Ag L ]·PF6 ·2CH3 CN} n , L = N -(pyridin-3-ylmeth-yl)pyridin-3-amine, comprises one AgI atom, one L ligand, two aceto-nitrile solvent mol-ecules and one PF6 - anion disordered over two orientations in a 0.567 (11):0.433 (11) ratio. Each AgI atom is coordinated by two pyridine N atoms from two L ligands in a slightly distorted linear coordination geometry [N-Ag-N = 170.55 (8)°]. Each L ligand bridges two AgI ions, resulting in the formation of a zigzag chain propagating along the [101] direction. In the crystal, Ag⋯Ag contacts [3.3023 (5) Å] and inter-molecular π-π stacking inter-actions [centroid-to-centroid distance = 3.5922 (15) Å] between the pyridine rings link these chains into a corrugated layer parallel to the ([Formula: see text]01) plane. The layers are stacked with a separation of 10.4532 (5) Å, and aceto-nitrile solvent mol-ecules and PF6 - anions as guests are inter-calated between the layers. The layers are connected through several N/C-H⋯F hydrogen bonds and P-F⋯π inter-actions [F⋯ring centroid = 3.241 (8) Å] between the layer and the inter-calated guests and between the inter-calated guests, forming a three-dimensional supra-molecular network.