Predict the stability of the complexes $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$ and $\left[\ma

Question

Predict the stability of the complexes $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$ and $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$ according to EAN rule

Professor PC Thomas Classes · Answer

According to EAN rule, $[\mathrm{Fe}(\mathrm{CN})_6]^{4-}$ achieves Krypton's configuration (stable), while $[\mathrm{Fe}(\mathrm{CN})_6]^{3-}$ falls short (unstable).