Lewis Base Stabilized Dichlorosilylene (Roesky)

Submitted by Shirley Lin / United States Naval Academy on Wed, 02/21/2024 - 15:08
Description

This literature discussion LO was created for the ACS National Award Winners 2024 collection. Dr. Herbert Roesky was the recipient of the 2024 Frederic Stanley Kipping Award in Silicon Chemistry. This LO is based on the article "Lewis Base Stabilized Dichlorosilylene" published in Angewandte Chemie 2009, 121, 5793-5796.

SLiThEr #57: What to do when your published results are questioned?

Submitted by Kyle Grice / DePaul University on Tue, 02/13/2024 - 15:19
Description

This was the 57th SLiThEr, presented by Dr. George Stanley, retired professor from LSU. It was a very interesting story and would be a valuable lesson to students about proper characterization and working with challenging and paramagnetic systems. 

Synthesis of Ti complexes supported by an ortho-terphenoxide
Description

The Tonks group has helped to revitalize interest in early metal, especially titanium, organometallic chemistry in recent years. Often his group uses Ti complexes for multi-component coupling, increasingly with masked low-valent Ti(II) as an important intermediate. This paper is more fundamental, exploring a ligand based on ortho-terphenoxide since the meta- and para- derivatives were already known. Along the way, they report some interesting NMR and structural information, and finish with some hydroamination catalysis. 

Adam Johnson / Harvey Mudd College Thu, 01/04/2024 - 16:21
Geometric Control of C-C RE from a Pt(IV) Pincer Complex
Description

When I saw this paper come out, I thought it would make a great teaching paper. It has synthesis, characterization, reaction mechanisms, computational chemistry and it directly impacts catalysis by a thorough examination of the reductive elimination reaction. What are the factors governing the rate of C-C RE? Can geometry (sterics) control reactivity or is it only based on the hybridization (sp2/sp3) of the carbon atom in question (electronics)?

Adam Johnson / Harvey Mudd College Thu, 01/04/2024 - 15:10
An Exploration of Molecular Dihydrogen Complexes
Description

I wanted my organometallic class to explore the bonding and spectroscopy of the Kubas dihydrogen complex without having to spend the time doing the entire literature discussion (which is really great and I have done it many times in the past) because I wanted to do it in only about 20-30 minutes in a 75 minute class period. Most of the questions come from the Kubas literature discussion, which I shortened. The IR and reduced mass calculations come from an LO I wrote about arene activation by Jones and Feher.

Adam Johnson / Harvey Mudd College Mon, 11/27/2023 - 14:41
SLiThEr #56: What can the Council on Undergraduate Research (CUR) do for you?
Description

In this SLiThEr, Bridget Gourley (DePauw University), Joe Reczek (Denison University), and Kari Stone (Lewis University) discuss getting involved in CUR from the perspectives of a long-time representative, the chair of the chemistry division of CUR, and a fairly new division representative. Learn about the resources and community that are available to support your research.

 

Sarah Shaner / Southeast Missouri State University Mon, 10/30/2023 - 15:46

“Five” Slides About: Multiple Bonds

Submitted by Rebecca Eikey / Chestnut Hill College on Thu, 10/26/2023 - 09:15
Description

Here are 10 slides to introduce students to multiple bonds formed between transition metals and between transition metals and ligands. This can be adapted to general chemistry, as long as students have learned Lewis diagrams. This can also be extended to add more information on the nature of the multiple bonds for upper division use in inorganic and physical chemistry. 

SLiThEr #55: "Chemical information meets AI -The continued need for information literacy training"

Submitted by Kyle Grice / DePaul University on Wed, 10/25/2023 - 17:02
Description

This is the 55th SLiTher, entitled "Chemical information meets AI -The continued need for information literacy training", presented byJudith Currano  This presentation was an related to Judith's recent fall ACS meeting presentation which explores how research search engines perform searches and how to train students to better utilize these resources.

 

 

The mechanism of Oxidative addition of Pd(0) to Si-H bonds

Submitted by Adam Johnson / Harvey Mudd College on Tue, 10/10/2023 - 18:25
Description

I saw Amanda Cook present this work (and another paper, Organometallics202241, 997) at the Organometallics Gordon Conference in summer 2023 and while I was furiously taking notes, I knew that I wanted to teach this paper. The paper elucidates the mechanism of oxidative addition of tertiary silanes to palladium zero phosphine complexes. 

Energetics and mechanisms of reductive elimination from Pt(IV) (short version)

Submitted by Adam Johnson / Harvey Mudd College on Tue, 10/10/2023 - 17:39
Description

I am moving away from teaching the Goldberg paper (still one of my favorites) and instead wanted to teach just the highlights as part of my seminar class in organometallic chemistry this fall. I created this shorter version of the activity to use in class. I did NOT have them read the paper in advance, hence the summaries in the LO itself.