W2013CHM2311 Part 4a Notes

Energy mo 1sa 1sb 1sa 1sb mo 1sa 1sb stability

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Unformatted text preview: e combina0on of atomic orbitals. Since the an0bonding MO has a higher energy than the atomic orbitals, it is drawn at a higher posi0on than the AOs on the energy axis. Energy ψ*MO = ϕ1sA  ­ ϕ1sB ϕ1sA ϕ1sB ψMO = ϕ1sA + ϕ1sB Deriving MO Diagrams: Energy Levels ΔE = energy difference between AOs and ψMO ΔE’ = energy difference between AOs and ψ*MO ψ*MO = ϕ1sA  ­ ϕ1sB Energy ΔE’ ΔE ϕ1sA ϕ1sB ψMO = ϕ1sA + ϕ1sB Deriving MO Diagrams: Energy Levels Step 3: Draw do_ed lines to connect the molecular orbitals to the atomic orbitals from which they were generated. ψ*MO = ϕ1sA  ­ ϕ1sB Energy ΔE’ ΔE ϕ1sA ϕ1sB ψMO = ϕ1sA + ϕ1sB Deriving MO Diagrams: H2 Step 4: Assign electrons to the appropriate atomic orbitals of the original isolated atoms. Following Auoau principle, Pauli exclusion principle, and Hund’s rule. ψ*MO = ϕ1sA  ­ ϕ1sB Energy ΔE’ ΔE ϕ1sA ϕ1sB ψMO = ϕ1sA + ϕ1sB Deriving MO Diagrams Step 5:...
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