Using molecular orbital theory, compare the bond energy and magnetic character of O2+ and O2
– species
Using molecular orbital theory, compare the bond energy and magnetic character of O2+ and O2 – species
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1 Answer
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This is a Short Answer Type Questions as classified in NCERT Exemplar
Ans: The electronic configurations of O2+ and O2 - according to molecular orbital theory is:
O2+: σ1s2 σ∗1s2 σ2s2 σ∗2s2 s2pz2, π2p2y , π2p2x, π*2p1x
O2- : σ1s2 σ∗1s2 σ2s2 σ∗2s2 s2pz2, π2p2y , π2p2x, π*2p2y π*2p1x
The bond order of O2+
Bond order = ( Nb- Na)
Bond order = (10-5)=2.5
The bond order of O2-
(10-7)= = 1.5
As the bond order of O2+ is higher, it is more stable than O2 -, because higher the bond order more stable is the bond. Both the molecular species
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