Crystal field stabilization energy for high spin `d^4` octahedral complex is

Options

A. `-0.6 Delta_(0)`
B. `-1.8 Delta_(0)`
C. `-1.6 Delta_(0) + P`
D. `-1.2 Delta_(0)`

Answer

A

Explanation

`d^(4)` octahedral complex has the configuration
`t_(2g)^(3) e_(g)^(1)`
CFSE = (-0.4x+0.6y)`Delta_(0)`
x=no. of electrons in `t_(2g)`
y=no. of electrons in `e_(g)`
`therefore` CFSE `=[-0.4(3)+0.6(1)]Delta_(0)`
`=(-1.2+0.6)Delta_(0)=-0.6 Delta_(0)`