Ni20 ((O H)12 (H2 O)6) (H P O4)8 (P O4)4 (H2 O)12.35

H_56.7Ni₂₀O_78.35P₁₂

Guillou, N.Gao, Q.-M.Chang, J.-S.Forster, P.M.Noques, M.Ferey, G.Cheetham, A.K.Park, S.-E.

Angew. Chem. Int. ed. (2001) 40, 2831-2834

a=18.209Å   b=18.209Å   c=6.3898Å

α=90°   β=90°   γ=120°