chapter 5 molecular orbital theory
Post on 15-Feb-2016
51 Views
Preview:
DESCRIPTION
TRANSCRIPT
Chapter 5Molecular Orbital Theory
Look at combinations of 1s wavefunctions:
Interactions of two s orbitals: H2
Interactions of two s orbitals: H2
Interactions of two p orbitals
Interactions of two p orbitals
Interactions of two p orbitals
Interactions of two p orbitals: MO Diagram
Interactions of two d orbitals
Interactions of two d orbitals
Homonuclear Diatomics
Orbitals of samesymmetry interact.
lower E orbital decreasesin E.
higher e orbital increases in E.
Orbital Mixing
Evidence?
Evidence: Photoelectron Spectroscopy
What about different atoms? How do you know relative atomic orbital energies?
More complicated: Using symmetry and LCAO’s H2O
More complicated: Using symmetry and LCAO’s H2O
More complicated: Using symmetry and LCAO’s H2O
CH4 Hybrid Orbitals: Predict Orbital Energies
CH4 Mos: LCAO’s for H’s in Td point group. Then relate those to C’s orbitals to predict MOs.
top related