(N H4)2 Zn (N H3)2 (Cr O4)2

Cr₂H₁₄N₄O₈Zn

Harel, M.Knobler, C.McCullough, J.D.

Inorganic Chemistry (1969) 8, 11-13

a=12.85Å   b=5.912Å   c=7.434Å

α=90°   β=111.2°   γ=90°