Low spin complex of (d^6)-cation in an octahedral field will... | Chemistry | SolveeIt

Low spin complex of $d^6$ -cation in an octahedral field will have the following energy :

$\frac{-12}{5} \Delta_0 + 3P$

$\frac{-2}{5} \Delta_0 + 2P$

$\frac{-2}{5} \Delta_0 + P$

$\frac{-12}{5} \Delta_0 + P$

Answer

$\frac{-12}{5} \Delta_0 + 3P$

Explanation

Low spin complex of $d ^{6}$ cation having $\Delta_{0}>$ P.E

Configuration is $t _{2} g ^{6} eg ^{0}$ and 3 electron are paired in $t _{2_{ g }}$ orbital

$=\frac{-2}{5} \Delta_{0} \times 6+3 P$
$=\frac{-12}{5} \Delta_{0}+3 P$

Chemistry Question on coordination compounds