Bis{1-[2-(diphenyl­phosphan­yl)eth­yl]-3-ethyl­imidazol-2-yl­idene}nickel(II) diiodide acetonitrile disolvate

The mol­ecular structure of the title compound, [Ni(C₁₉H₂₁N₂P)₂]I₂·2CH₃CN, shows two six-membered N-heterocyclic carbene/phosphane chelate rings that form a nearly square-planar coordination geometry around the Ni^II atom, which lies 0.190 (1) Å above the C₂P₂ plane. The sum of the bond angles at the Ni^II atom is 358.68 (6)°, with C-Ni-P bite angles of 82.89 (5) and 84.08 (6)°. The two carbene rings make a dihedral angle of 52.65 (8)°.