CoF6Rb2
Quail, J.W.Rivett, G.A.
Canadian Journal of Chemistry (1972) 50, 2447-2450
a=8.46Å b=8.46Å c=8.46Å
α=90° β=90° γ=90°
CoCs2F6
a=8.914Å b=8.914Å c=8.914Å