[(C₂H₅)₄N]₄[Mo₈O₂₆]: a redetermination and correction

The title compound, tetra­ethyl­ammonium hexa-μ₃-oxo-hexa-μ₂-oxo-tetra­deca­oxoocta­molybdate, contains discrete centrosymmetric α-[Mo₈O₂₆]⁴⁻ anions and, for charge compensation, four tetra­ethyl­ammonium cations per anion. The compound reported by Lu, Haung, Huang & Haung [(1989). Jiegou Huaxue, 8, 23–26] is evidently isostructural with the title compound, although Lu et al. formulated their phase as having a composition of {[(C₂H₅)₄N]⁺}₂·2H⁺·[Mo₈O₂₆]⁴⁻.