P4 O6 (Ni (C O)3)4

C₁₂Ni₄O₁₈P₄

Pierron, E.D.Wheatley, P.J.Riess, J.G.

Acta Crystallographica (1,1948-23,1967) (1966) 21, 288-289

a=8.811Å   b=8.811Å   c=8.811Å

α=90°   β=90°   γ=90°