W2013CHM2311 Part 4a Notes

Energy the molecular orbitals formed from the overlap

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Unformatted text preview: between the nuclei and contains the internuclear axis is called a sigma (σ) orbital. ↳  i.e., no changes in orbital sign occur upon reflec0on in any plane that contains the z ­axis. Examples of σ ­orbitals: z z z z Symmetry of Molecular Orbitals σ ­Orbitals (an alternaBve definiBon): Any orbital that is symmetric with respect to C∞ rota0on about the line connec0ng the nuclei is called a sigma (σ) orbital. ↳  i.e., no changes in orbital sign occur upon rota0ng the orbitals around the z ­axis. Examples of σ ­orbitals: z z z z Symmetry of Molecular Orbitals π ­Orbitals: An orbital that has a nodal plane that contains the internuclear axis is called a pi (π) orbital. ↳  i.e., reflec0on along the internuclear axis results in a change of sign of the orbital wave func0on. Examples of π ­orbitals: z z z z Symmetry of Molecular Orbitals π ­Orbitals (an alternaBve de...
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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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