For the complex,  ${\mathrm{K}}_3\left[{\mathrm{FeF}}_6\right]$  it is observed that ${\mathrm{\Delta }}_{\mathrm{o}}<\mathrm{P}.$  Crystal field stabilization energy is equal to

${\mathrm{\Delta }}_{\mathrm{o}}<\mathrm{P},$  Weak field ligand, High Spin complex 
$\begin{array}{l}{\mathrm{Fe}}^{+3}-3{\mathrm{d}}^5-\mathrm{n}=5........{\mathrm{t}}_{2\mathrm{g}}^3{\mathrm{eg}}^2\\ \mathrm{CFSE}=3\left(-0.4{\mathrm{\Delta }}_{\mathrm{o}}\right)+2\left(+0.6{\mathrm{\Delta }}_{\mathrm{o}}\right)\text{\hspace{0.17em}=zero\hspace{0.17em}}\end{array}$