What is coordination number of central metal ion in $\left[\mathrm{Fe}\left(\mathrm{C}_2…
What is coordination number of central metal ion in $\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}$ ?
$3$
$5$
$4$
$6$
Solution
In $\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}$, three bidentate $\mathrm{C}_2 \mathrm{O}_4^{2-}$ ligands, that is, total six donor atoms are attached to ferric ion $\left(\mathrm{Fe}^{3+}\right)$. Therefore, the coordination number of $\mathrm{Fe}^{3+}$ ion in the complex is six.