Solution: The iodine bromide molecule, IBr, is an  interhalogen compound. Assume that the molecular orbitals of IBr are analogous to the homonuclear diatomic molecule F2.Which valence atomic orbitals of I and of Br are used to construct the MOs of IBr?

Problem

The iodine bromide molecule, IBr, is an  interhalogen compound. Assume that the molecular orbitals of IBr are analogous to the homonuclear diatomic molecule F2.

Which valence atomic orbitals of I and of Br are used to construct the MOs of IBr?

Solution

We have to find out which of the valence atomic orbitals or I and Br are used to construct the molecular orbitals of IBr.


Since the molecular orbital diagram of the IBr molecule is analogous to the F2 molecule, we will have a look at the molecular orbital diagram for the F2 molecule first.

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