Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 7 (July 2013)

metal-organic compounds

Acta Cryst. (2013). E69, m414-m415    [ doi:10.1107/S1600536813016309 ]

catena-Poly[[silver(I)-[mu]-N-(pyridin-3-ylmeth­yl)pyridine-2-amine-[kappa]2N:N'] tri­fluoro­methane­sulfonate]

S.-H. Moon and K.-M. Park

Abstract: In the asymmetric unit of the title polymeric complex, {[Ag(C11H11N3)](CF3SO3)}n, there are two AgI atoms, two N-(pyridin-3-ylmeth­yl)pyridine-2-amine ligands (A and B) and two CF3SO3- anions. One AgI atom is coordinated by two pyridine N atoms from two symmetry-related A ligands in a geometry slightly distorted from linear [N-Ag-N = 173.2 (3)°], forming a left-handed helical chain, while the other AgI atom is coordinated by two pyridine N atoms from two symmetry-related B ligands in a bent arrangement [N-Ag-N = 157.1 (3)°], forming a right-handed helical chain. Both helical chains have the same pitch length [10.4007 (7) Å], propagate along the b-axis direction and are alternately arranged via Ag...Ag [3.0897 (12) Å] and [pi]-[pi] stacking inter­actions [centroid-centroid distances = 3.564 (7) and 3.518 (6) Å], resulting in the formation of a two-dimensional supra­molecular network extending parallel to the ab plane. Inter­molecular N-H...O, C-H...O and C-H...F hydrogen-bonding inter­actions occur between the helical chains and the anions.

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