For the crystal field splitting in octahedral | vedclass

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(B) In an octahedral complex,the five degenerate $d$-orbitals split into two sets due to the approach of ligands along the axes.The two orbitals $d_{x

Vedclass · Accepted Answer

the energy of the $e_{g}$ orbitals will increase by $(3/5) \Delta_{o}$ and that of the $t_{2g}$ will decrease by $(2/5) \Delta_{o}$

Vedclass · Answer

(B) In an octahedral complex,the five degenerate $d$-orbitals split into two sets due to the approach of ligands along the axes.The two orbitals $d_{x^2-y^2}$ and $d_{z^2}$ (collectively called $e_{g}$ orbitals) point directly towards the ligands and experience greater repulsion,thus their energy increases by $+(3/5) \Delta_{o}$.The three orbitals $d_{xy}$,$d_{yz}$,and $d_{zx}$ (collectively called $t_{2g}$ orbitals) point between the axes and experience less repulsion,thus their energy decreases by $-(2/5) \Delta_{o}$ relative to the barycenter.

For the crystal field splitting in octahedral complexes,

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