The Crystal Field Stabilization Energy (CFSE) for the octahedral complex is experimentally determine — Coordination Compounds Chemistry Question

💡 Solution & Explanation

The relationship between the crystal field splitting energy in an octahedral field ($\Delta_o$) and a tetrahedral field ($\Delta_t$) for the same metal, same oxidation state, and same ligands is given by the fundamental CFT formula: $\Delta_t = \frac{4}{9} \Delta_o$. Given $\Delta_o = 18000 \text{ cm}^{-1}$. $\Delta_t = \frac{4}{9} \times 18000 = 4 \times 2000 = 8000 \text{ cm}^{-1}$.