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This Guided Literature Discussion was assigned as a course project, and is the result of work originated by students Christopher Lasterand Patrick Wilson. It is based on the article “Deca-Arylsamarocene: An Unusually Inert Sm(II) Sandwich Complex” by Niels J. C. van Velzen and Sjoerd Harder in Organometallics 2018, 37, 2263−2271. It includes a Reading Guide that will direct students to specific sections of the paper that were emphasized in the discussion. This article presents a study of the reactivity of bulky CpAr-Et/iPr2 Sm complexes that is contrasted to the more well-known Cp*2Sm.
| Attachment | Size |
|---|---|
| Reading Guide (Word) | 23.47 KB |
| Discussion Questions (Word) | 39.21 KB |
After reading and discussing this article, a student should be able to…
- Be more familiar with the chemistry of sandwich samarocene complexes.
- Understand how bulky ligands affect structure and reactivity in a sandwich complex.
- Apply the CBC method to identify ligand functions and metal valence number/ligand bond number.
- Understand how XRD bond distances can help determine a ligand charge.
I am planning on assigning this LO as a graded in-class group discussion. Students will be given a copy of the article, reading guide, and discussion questions one week in advance. On the day of the discussion, students will be assigned in groups of 2-3. They will then have one lecture period to answer the questions in writing as a group. [This article is among the free-access ACS Editors’ Choice.]
Evaluation
A portion of their grade (20%) is dedicated to literature discussions (4-6 over the course of the semester). The grading rubric involves 3 possible ratings for each question/answer: “excellent”, “acceptable”, or “needs work”.
Concepts covered during literature discussions will be included among exam materials.
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