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?
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.