W2013CHM2311 Part 4a Notes

u u 2s u g 2s mo energy levels for homonuclear

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Unformatted text preview: als is small (or zero), then stabiliza0on of the lower energy molecular orbital is significant. ΔE Energy Energy If the difference in energies of the atomic orbitals is large, then the stabiliza0on of the lower energy molecular orbital will be minimal. ΔE If the difference in energies between two atomic orbitals is too large, then there is NO stabiliza0on – i.e., a molecular orbital will NOT be formed. Summary of Requirements for Bonding to Occur 1. Symmetry of the AO The symmetry of the atomic orbitals must be such that regions of the same sign can overlap for a bonding interaction. Overlap regions of opposite sign give rise to antibonding interactions. Orthogonal orbitals or atomic orbitals with different rotational symmetry about the internuclear axis CANNOT interact. Summary of Requirements for Bonding to Occur 1. Symmetry of the AO The symmetry of the atomic orbitals must be such that regions of the same sign can overlap for a bonding interaction...
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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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