W2013CHM2311 Part 4a Notes

2px 2py 2pz 2px 2py 2pz mo 2sa 2sb 2s 2s mo 2sa

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Unformatted text preview: ymmetry of the atomic orbitals is obviously important when these orbitals interact. Interactions between orbitals can be “constructive”, “destructive” or “zero”. 2. Relative energies of the AOs used to form a molecular orbital Energy Energy The overlap and thus the relative stability of the MO depends on the difference between the initial AOs. The effect is inversely proportional to the difference between the overlapping AOs. ΔE ΔE MO Energy Level Diagrams Relative Energies of Molecular Orbitals controlled by three factors: 1. Symmetry of the AO – must have correct symmetry to overlap The symmetry of the atomic orbitals is obviously important when these orbitals interact. Interactions between orbitals can be “constructive”, “destructive” or “zero”. 2. Relative energies of the AOs used to form a molecular orbital The overlap and thus the relative stability of the MO depends on the difference between the initial AOs. The effect is inversely proportional to the difference between the overlapping AOs. 3. Extent of overlap between the atomic orbitals...
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This note was uploaded on 03/28/2014 for the course CHM 2311 taught by Professor Richardson during the Winter '09 term at University of Ottawa.

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