Sn3Yb
Percheron-Guegan, A.Gonzalez-Jimenez, F.Achard, J.C.Gorochov, O.Imbert, P.
Journal of the Less-Common Metals (1974) 37, 1-8
a=4.861Å b=4.861Å c=4.861Å
α=90° β=90° γ=90°