Poly[3,3′-diethyl-1,1′-(ethane-1,2-diyl)diimidazolium [tetra-μ-bromido-diargentate(I)]]

Abstract

The asymmetric unit of the title salt, {(C12H20N4)[Ag2Br4]}n, contains one-half of a substituted imidazolium cation, one Ag+ and two Br− ions. The cation is completed by crystallographic inversion symmetry. The crystal structure is made up from polymeric sheets of {[AgBr2]−}n anions extending parallel to (100). The basic building unit of the anion is a slightly distorted AgBr4 tetrahedron. A four- and 12-membered ring system is formed by corner sharing of the AgBr4 tetrahedra. The imidazolium cations are located between the anionic sheets and partly protrude into the voids defined by the 12-membered rings.