1.

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

Answer»

<P>`-0.6 Delta_(0)`
`-1.8 Delta_(0)`
`-1.6 Delta_(0) + P`
`-1.2 Delta_(0)`

Solution :`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)`


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