Crystal structure of bis(2,2 ': 6 ',2 ''-terpyridine- kappa N-3, N ', N '')nickel(II) dicyanidoaurate(I)

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 Ni (2+) cation, resulting in a nearly octahedral coordination sphere, although there is not any imposed crystallographic symmetry about the Ni 2+ site. The two nearly linear dicyanidoaurate(I) anions [C-Au-C = 179.0 (2) and 178.2 (2)degrees] contain a short aurophilic interaction of 3.1017 (3) angstrom. The structure does not demonstrate any pi-pi stacking. Non-classical C-H center dot center dot center dot N interactions between the cations and anions build up a three-dimensional network.