Crystal structure of an AgI intercalation compound: Catena-poly[[silver(I)-μ-N-(pyridin-3-ylmethyl)-pyridin-3-amine-κ2N:N' ] hexafluoridophosphate acetonitrile disolvate]

초록

The asymmetric unit in the title compound, [Ag(C₁₁H₁₁N₃)]PF₆·2CH₃CN or {[AgL]·PF₆·2CH₃CN}", L = N-(pyridin-3-ylmethyl)pyridin-3-amine, comprises one AgI atom, one L ligand, two acetonitrile solvent molecules and one PF₆- anion disordered over two orientations in a 0.567 (11):0.433 (11) ratio. Each Ag 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 intermolecular π-π stacking interactions [centroid-to-centroid distance = 3.5922 (15) Å] between the pyridine rings link these chains into a corrugated layer parallel to the (101) plane. The layers are stacked with a separation of 10.4532 (5) Å, and acetonitrile solvent molecules and PF₆- anions as guests are intercalated between the layers. The layers are connected through several N/C-H· · ·F hydrogen bonds and P-F· · -π interactions [F· · ·ring centroid = 3.241 (8) Å] between the layer and the intercalated guests and between the intercalated guests, forming a three-dimensional supramolecular network. © 2017 International Union of Crystallography. All rights reserved.

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