A novel zirconium polyoxometalate compound: (NH₄)₉[Zr₂(μ-OH)(H₂O)₂(AsOH)₂(AsW₇O₂₈)(AsW₁₀O₃₆)]·26H₂O

The title structure comprises two seven-coordinate capped trigonal prismatic Zr^IV ions, linked through an OH⁻ group, which are ligated to an [AsW₁₀O₃₆]⁹⁻ anion and to an [AsW₇O₂₈]¹¹⁻ anion that is capped by two {AsOH}²⁺ groups.