Difference between Bonding and Anti-bonding Molecular Orbital

Bonding and Anti-bonding Molecular Orbital:

The following are the points of difference between Bonding and Anti-bonding Molecular Orbital.

Bonding Molecular Orbital (B.M.O)Anti-Bonding Molecular Orbital (A.B.M.O)
It is formed by the additive overlap of waves function of atomic orbitals i.e.
ΨB2 = (ΨA + ΨB)2
It is formed by the subtractive overlap of wave functions of atomic orbitals i.e.
ΨA2 = (ΨA – ΨB)2
Bonding Molecular Orbital are associated with lower energy than atomic orbitals.Anti-Bonding Molecular Orbital are associated with higher energy than atomic orbitals.
B.M.O are more stable.A.B.M.O are less stable.
B.M.O is formed when the lobes of combining atomic orbitals have the same sign.A.B.M.O is formed when the lobes of combing orbitals have the opposite sign.
B.M.O is formed by the constructive interference of electron waves.A.B.M.O is formed by the destructive interference of electron waves.
B.M.O is formed during the in-face overlap.A.B.M.O is formed during the out-face overlap.
B.M.O has a high electron density in the region between the two nuclei.Electron density is concentrated away from the inter-nuclear region.
B.M.O is represented by σ, π, δ, Φ.A.B.M.O is represented by σ*, π*, δ*, Φ*.

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