Name: Naming Coordination Compounds
Uploaded: 2019-07-19
Duration: 11 min 3 s
Description: Binomial nomenclature is the systematic naming of a living organism. Similarly, organic compounds are named as per the rules set by the IUPAC. Watch the vide...

Question

Sketch the splitting of $d -$ orbitals in an octahedral crystal field.

Accepted Answer

Crystal field effects in octahedral coordination entities:

(i) Let us assume that the six ligands are positioned symmetrically along the Cartesian axes, with metal atom at the origin. As, the ligands approach first there is an increase in energy of $d -$ orbitals relative to that of the free ion just as would be the case in a spherical field.

(ii) The orbitals lying along the axes ( $d_{z^{2}}$ , and $d_{x^{2} - y^{2}}$ ) get repelled more strongly than $d_{xy}, d_{yz}$ and $d_{xz}$ orbitals which have lobes directed between the axes.

The $d_{z^{2}}$ , and $d_{x^{2} - y^{2}}$ orbitals get raised in energy and $d_{xy}, d_{yz}, d_{xz}$ orbitals are lowered in energy
relative to the average energy in the spherical crystal field.

Thus, the degenerate set of $d -$ orbitals get split into two sets: the lower energy orbitals set $t_{2 g}$ and the higher field energy orbitals $e_{g}$ set. The energy is separated by $∆_{0}$ .

Sketch the splitting of $d -$ orbitals in an octahedral crystal field.

Important Questions on d- and f- Block Elements and Coordination Compounds

Learn and Prepare for any exam you want !

Sketch the splitting of d-orbitals in an octahedral crystal field.

Important Questions on d- and f- Block Elements and Coordination Compounds

Learn and Prepare for any exam you want !

Sketch the splitting of $d -$ orbitals in an octahedral crystal field.