Bis[N-(1-naphthyl)ethylenediammonium] hexaiodoplumbate(II)

The title compound, (C12H16N2)2[PbI6], is an organic–inorganic salt, with two doubly protonated N-(1-naphthyl)ethyl­enediamine groups as the cations and one octahedral hexaiodoplumbate(II) as the anion. The stucture consists of alternating inorganic and organic layers parallel to the bc plane. Simple face-to-face aromatic stacking inter­actions occur between parallel naphthalene systems in the organic layers, and N—H⋯I hydrogen bonds between the ethyl­enediammonium groups and PbI64− octa­hedra stabilize the structure. The slightly distorted PbI6 octa­hedra are isolated from each other, with the Pb atom located on a centre of inversion.