Methane hydrate

C₄H₄₆O₂₃

Gutt, C.Asmussen, B.Press, W.Johnson, M. R.Handa, Y. P.Tse, J. S.

Journal of Chemical Physics (2000) 113, 4713-4721

a=11.821Å   b=11.821Å   c=11.821Å

α=90°   β=90°   γ=90°