Crystal data for antimony molybdenum oxide Sb 2 MoO 6

The powder data for antimony molybdenum oxide Sb 2 MoO 6 are reported. This compound is triclinic, P {\bar 1}, with a = 7.481(4), b = 7.504(3), c = 10.120(1) Å, α = 70.43(3), β = 70.91(4), γ = 83.34(7)°; U = 505.9(5) Å 3 ; Z = 4; D x = 5.74 Mg m −3 . The structure is of the fluorite type but it is distorted. Pseudo-monoclinic cells as reported by Parmentier, Courtois & Gleitzer [ Bull. Soc. Chim. Ft. (1974), 1–2 , 75–77] or that obtained with program TRACER [Lawton & Jacobson (1965). Mobil Oil Corporation Research Department; Lawton (1967). Mobil Oil Corporation Research Department] are also considered and discussed. Neutron diffraction gives further evidence of the triclinic lattice. The JCPDS Diffraction File No. for Sb 2 MoO 6 is 33–1491.