BaF6Si
Hoskins, B.F.Linden, A.Mulvaney, P.C.O'Donnell, T.A.
Inorganica Chimica Acta (1984) 88, 217-222
a=7.189Å b=7.189Å c=7.015Å
α=90° β=90° γ=120°
CsF6Re
a=7.853Å b=7.853Å c=8.14Å