Structure of potassium paradodecatungstate 71/2-hydrate

Abstract

K 10 [H 2 W 12 O 89 ].7 1/2H 2 O, M r =3406.3, triclinic, P1, a=13.126 (2), b=16.274 (7), c=11.756 (4) A, α=96.77 (2), β=90.04 (2), γ=77.77 (2) o , V=2436.4 3 , Z=2, D x =4.645 g cm -3 , λ(Mo Kα)=0.7107 A, μ=280.5 cm -1 , F(000)=2982, T=296 K, R=0.051, wR=0.067 and S=2.20 for 7588 observed reflections with 2θ<52 o