Why do sequence of increasing energy of molecular orbital is different for some compounds?

Asked by  | 3rd Jan, 2013, 03:50: PM

Expert Answer:

The greater the overlap, the more the bonding orbital is lowered and the anti-bonding orbital is raised in energy relative to atomic orbitals. For e.g., the extent of overlapping in case of sigma – orbital is more than that in pi – orbital. Consequently, the energy of a ?2pz is lower than the energy of bonding ?2px or ?2py MOs. 
So, basically it depends upon the extent of overlaping of orbitals.

Answered by  | 3rd Jan, 2013, 04:51: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.