Chemistry · Frontier Molecular Orbital Theory
According to Frontier Molecular Orbital (FMO) theory, which interaction occurs during the attack of a Lewis base on the σ* orbital of a covalent bond X-Y?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The Lewis base HOMO donates electron density into the σ* (LUMO) of X-Y, weakening the X-Y bond.✓
- 2The Lewis base LUMO interacts with the σ (HOMO) of X-Y, strengthening the X-Y bond.
- 3The Lewis base HOMO interacts with the σ (HOMO) of X-Y in a four-electron repulsive interaction.
- 4The Lewis acid HOMO donates electron density into the σ* of X-Y.
Correct answer
The Lewis base HOMO donates electron density into the σ* (LUMO) of X-Y, weakening the X-Y bond.
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