Hexane-1,6-di­ammonium hexa­fluoro­silicate

The asymmetric unit of the title organic–inorganic molecular salt, C₆H₁₈N₂²⁺·SiF₆²⁻, consists of one anion and one cation together with half of each of two cations and two anions located on inversion centres. The SiF₆²⁻ octa­hedral anions are arranged to form sheets parallel to (011), which are linked into a three-dimensional network by the organic cations through N—H...F hydrogen bonds.