Crystal structure of bis­(22′:6′2′′-terpyridine-κ3NN′N′′)nickel(II) dicyanidoaurate(I)

摘要

The title compound, [Ni(C15H11N3)2][Au(CN)2]2, is an ionic compound composed of bis­(2,2′:6′,2′′-terpyridine)­nickel(II) dications and dicyanidoaurate(I) anions in a 1:2 ratio. The two tridentate terpyridine ligands define the coordination of the Ni²⁺ cation, resulting in a nearly octa­hedral coordination sphere, although there is not any imposed crystallographic symmetry about the Ni²⁺ site. The two nearly linear dicyanidoaurate(I) anions [C—Au—C = 179.0 (2) and 178.2 (2)°] contain a short aurophilic inter­action of 3.1017 (3) Å. The structure does not demonstrate any π–π stacking. Non-classical C—H⋯N inter­actions between the cations and anions build up a three-dimensional network.