2,4,8,10-tetraoxa-3,9-diphosphaspiro[5,5]undecane, 3,9,-dimethyl-3,9-dioxide

C₇H₁₄O₆P₂

Elnagar, Hassan Y.Ranken, Paul F.Fronczek, Frank R.

Acta Crystallographica Section C (2000) 56, 7 905-906

a=16.4560(14)Å   b=5.5761(9)Å   c=11.9512(12)Å

α=90°   β=94.517(7)°   γ=90°