Chemistry - Coordination Chemistry Question with Solution | TestHub

$\left[\mathrm{Co}{\left({\mathrm{H}}_2\mathrm{O}\right)}_3{\mathrm{F}}_3\right] {\mathrm{Co}}^{3+}=3{\mathrm{d}}^{0}4{\mathrm{s}}^0\Rightarrow {\mathrm{t}}_{2\mathrm{g}}2{\mathrm{v}}^1,{\mathrm{e}}_9^{1.1}$

$\mathrm{CFSE}=\left[-0.4{\mathrm{nt}}_{29}+0.6{\mathrm{n}}_{\mathrm{og}}\right]{\mathrm{\Delta }}_0+\mathrm{n}\left(\mathrm{P}\right)$

$=[-0.4\times 4+0.6\times 2]{\mathrm{\Delta }}_{\circ }+0$

$=-0.4{∆}_0$