(Ni (H2 O)6)2 (P2 O6)

H₂₄Ni₂O₁₈P₂

Haag, J.M.LeBret, G.C.Cleary, D.A.Twamley, B.

Journal of Solid State Chemistry (2005) 178, 1308-1311

a=11.2418Å   b=18.5245Å   c=7.3188Å

α=90°   β=90°   γ=90°