Coordination Compounds

$\left[\mathrm{CrF}_6\right]^{3-}$

$\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$

$\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right]^{3+}$

$\left[\mathrm{Cr}(\mathrm{CN})_6\right]^{3-}$