Catena-Poly[3,3′-diethyl-1,1′-(propane-1,3-diyl) di(1H-imidazol-3-ium) [silver(I)-di-μ-iodido-silver(I)-di-μ-iodido]]

Abstract

The title compound, {(C13H22N4)[Ag 2I4]}n , was prepared by reaction of 1,3-bis(N-ethylimidazolium-1-yl)propane iodide with silver (I) oxide. In the 3,3′-diethyl-1,1′-(propane-1,3-diyl)di(1H-imidazol-3-ium) cation, the dihedral angle between the imidazole rings is 49.3 (1)°. In the [Ag 2I4]2- anion, each AgI atom is bonded to three iodide anions, the two AgI atoms and two of the iodides forming Ag2I2 square-planar (r.m.s. deviation = 0.01 Å) units·The remaining two iodides, which are placed on opposite sides of the square, together with their centrosymmetric counterparts, link the square-planar Ag2I2 units into {[Ag 2I4]2-}n polymeric chains via Ag - I bonds.