Question

Crystal field stabilization energy for ${\left[Co{F}_6\right]}^{-3}$ is :
[ P is pairing energy ]

• A. $0.6+P$
• B. $-0.4+P$
• C. $1.2+2P$
• D. $2.4+4P$

Answer 1

The correct option is B $-0.4+P$

$[Co{F}_6{]}^3$
$C{o}^{+3},t_{2g}^4{e}_g^2$ configuration so
Crystal field stabilization energy is $=-0.4\left(4\right)+0.6\ast 2+P=-0.4+P$.