K1.33 (N H4)1.67 (Pr ((P O2 N H)3)2) (H2 O)4

H_20.68K_1.33N_7.67O₁₆P₆Pr

Sokol, V.I.Porai-Koshits, M.A.Butman, L.A.Rozanov, I.A.Berdnikov, V.R.

Koordinatsionnaya Khimiya (= Coordination Chemistry (USSR)) (1979) 5, 1093-1102

a=25.623Å   b=10.577Å   c=8.632Å

α=90°   β=90°   γ=90°