The order of MO energies in B₂, C₂, and N₂ (σ_2p π_2p), is different from the order in O₂, F₂, and Ne₂ (σ_2p π_2p). This is due to __________.

Question

The order of MO energies in B₂, C₂, and N₂ (σ_2p > π_2p), is different from the order in O₂, F₂, and Ne₂ (σ_2p > π_2p). This is due to __________.

Quizplus · Accepted Answer

In B₂, C₂, and N₂, there is greater 2s-2p interaction, which causes the σ2p orbital to be higher in energy than the π2p orbitals. This interaction is less significant in O₂, F₂, and Ne₂, leading to a different order of molecular orbital energies.

The Order of MO Energies in B2, C2, and N2

The Order of MO Energies in B₂, C₂, and N₂