Reading: CHP 5 Molecular Orbitals for Larger Molecules: Sect 5.4.1-5.4.3

PreAssignment:

Learning Outcomes:

  1. Define group orbitals for triatomic molecules
  2. Define group orbitals for very simple triatomic molecules by inspection
  3. Use group orbitals to assist in producing a qualitative MO diagram

Group Activity - Group Orbitals for Simple Triatomics - BeH2 - POGIL worksheet

Worked Example: Carbon Dioxide


Problem Set (4th Ed): 5.13, 5.14, 5.15 (solutions)

Problem Set (5th Ed): 5.14, 5.15, 5.16 (solutions)

Reading: CHP 5 Molecular Orbitals for Larger Molecules: Sect 5.4.4-5.4.5

PreAssignment:

Learning Outcomes:

  1. understand the advantages (and disadvantages in using MOs over simple Lewis structures) particularly for larger molecules
  2. be able to produce a reducible representation for a set of atomic orbitals on the terminal atoms in a molecule such as BF3
  3. be able to use the MO diagram to explain some chemical and physical properties large molecules
    • estimate bond order for the B-F bond
    • identify the LUMO and HOMO in the diagram
    • explain Lewis acid-base acid-base properties of the molecule

Worked Example: Carbon Dioxide

Group Activity - MOs for Larger Molecules - BF3 - POGIL worksheet


Problem Set (4th Ed): 5.18, 5.20, 5.21, 5.22, 5.23, 5.30 (solutions)

Problem Set (5th Ed): 5.19, 5.21, 5.22, 5.23, 5.24, 5.31 (solutions)

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