Reading: CHP 4 Symmetry Elements and Operations: 4.1

PreAssignment: The POGIL worksheet for todays class asks you to build several molecules using a molecular model kit. Build the structures required for the POGIL worksheet and bring them with you to class.

Learning Outcomes:

  • Distinguish between a symmetry element and operation.
  • Know the names and symbols for the different symmetry operations. Identity (E), rotation (Cn), reflection (σ), inversion (i), rotation-reflection (Sn).
  • Identify the symmetry elements possessed by a molecule.

Group Activity - Symmetry POGIL worksheet


Problem Set (4th Ed): Exercises 4.1 and 4.2 (solutions)

Problem Set (5th Ed): Exercises 4.1 and 4.2 (solutions)

- - more practice and a guided turorial

Reading: CHP 4 Symmetry - Point Groups: 4.2

PreAssignment: In Class PreQuiz (cancelled)

Learning Outcomes:

  • Distinguish between a symmetry element and operation.
  • Know the names and symbols for the different symmetry operations. Identity (E), rotation (Cn), reflection (σ), inversion (i), rotation-reflection (Sn).
  • Identify the symmetry elements possessed by a molecule.

Group Activity - Point Groups POGIL worksheet                    Quiz 3 on Point Groups Key


Problem Set (4th Ed): Exercises 4.1(a,b), 4.2(a,b), 4.3(b,c), 4.4, 4.5(b,c,d,e,f,h,i*), 4.6(b,c,e), 4.13
* challenging (solutions)

Problem Set (5th Ed): 4.1(a,b), 4.2(a,b), 4.3(b,c), 4.4, 4.5(b,c,d,e,f,h,i*), 4.6(b,c,e), 4.13
* challenging (solutions)

- - more practice and a guided tutorial

Reading: CHP 4 Symmetry - Properties and Representations of Groups: 4.3

PreAssignment:

  1. PowerPoint - Matrices (review)
  2. Groups
  3. PowerPoint - Character Tables


PreQuiz in class

Learning Outcomes:

  • Be able to demonstrate an understanding of the form, features, and function of character tables.
  • Be able to demonstrate a basic understanding of the development of character tables
    • Demonstrate that the operations within a point group fit the criteria for a mathematical group
    • Understand how to represent a symmetry operation as a matrix

Group Activity - Character Tables POGIL worksheet


Problem Set (4th Ed): 4.17, 4.19 (solutions)

Problem Set (5th Ed): 4.19, 4.21 (solutions)

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