Catalysis: Copper-Mediated Cross Coupling Reactions

Submitted by Sibrina Collins / College of Arts and Sciences at Lawrence Technological University on Thu, 07/19/2012 - 14:29
Description

This in-class activity introduces students to copper-mediated cross coupling reactions. In the literature, many cross coupling reactions are often discussed using palladium as a catalyst, not copper. In my laboratory, we are synthesizing 7-azaindole-based ligands for the development of potential anti-tumor platinum(II) complexes. In addition, I use one of my own publications to demonstrate an application of this synthetic strategy. The students calculate the actual turnover number (TON) and turnover frequency (TOF) for the copper catalyst.

Identifying Organometallic Reaction Classes in Literature Examples of Catalytic Cycles

Submitted by Nicole Crowder / University of Mary Washington on Thu, 07/19/2012 - 14:05
Description

This learning object has the student search the chemical literature for a paper focusing on a catalytic cycle (Wilkinson’s, Grubbs, Heck, Wacker, Suzuki, Click, etc.). They answer a set of guiding questions for reading the literature, then analyze the catalytic cycle presented in the paper to assign oxidation state, d electron count, valence electron count, and preferred geometry for each complex in the cycle. They also identify the process(es) occurring during each step in the cycle.

Recyclable Catalyst for Conversion of Carbon Dioxide into Formate Attributable to an Oxyanion on the Catalyst Ligand

Submitted by David R. Weinberg / Colorado Mesa University on Thu, 07/19/2012 - 13:28
Description

This is a literature discussion of a short JACS communication that describes an iridium catalyst for the reduction of bicarbonate to formate. It addresses green chemistry, potential industrial processes, bridges between homogeneous and heterogeneous catalysis, pH-dependent solubility, electron counting, oxidation state assignments, and thermodynamic analyses.

Writing assignment series related to topics discussed in organometallic chemistry - Assignment 3 Literature Critique

Submitted by Abby O'Connor / The College of New Jersey on Thu, 07/19/2012 - 11:31
Description

Searching and reading the literature is an important tool in teaching organometallic chemistry. This overall project focuses on the improving students' writing skills and to begin to think critically about articles in the literature through a series of different writing assignments. This project is used in a semester long course on organometallics and reaction mechanisms. The first assignment (this LO) is a summary, the second is related to the NSF highlight, and the third is a literature critique.

Ir-based Catalysis of Alkyl Halides: Scope, Mechanism, and Unexpected Reactivity Patterns

Submitted by Matt Hartings / American University on Thu, 07/19/2012 - 10:34
Description

This literature review covers a paper by the Brookhart group in which they describe a very interesting catalytic route for reducing alkyl halides. The paper describes the catalytic mechanism in great detail and shows an unexpected trend in relative reactivities (Br > Cl > I and primary > secondary). One of the primary benefits for using this paper is that it can enable your students to rationalize a mechanism consistent with many different data sets.

Literature Discussion on “Mechanisms for the Activation of Carbon Monoxide via Oxorhenium Complexes.”

Submitted by Nicole Crowder / University of Mary Washington on Thu, 07/19/2012 - 09:54
Description

This is intended as a guided reading assignment for the JACS Communication, Mechanism for the Activation of Carbon Monoxide via Oxorhenium Complexes” by Smeltz, Boyle, and Ison; J. Am. Chem. Soc. 2011, 133, 13288-13291. This article will expose students to newly published research and novel reaction mechanisms. It will require students to apply their knowledge of electron counting and organometallic mechanisms.

Deciphering Mechanisms of Organometallic Reactions

Submitted by Nicole Crowder / University of Mary Washington on Thu, 07/19/2012 - 09:42
Description

A detailed in-class analysis of the paper Mechanism for the Activation of Carbon Monoxide via Oxorhenium Complexes” by Smeltz, Boyle, and Ison; J. Am. Chem. Soc. 2011, 133, 13288-13291.  Students will apply their knowledge of organometallic chemistry concepts to the mechanistic scheme in the paper.

ChemTube3D

Submitted by Anthony L. Fernandez / Merrimack College on Thu, 07/19/2012 - 08:51
Description

ChemTube3D is a website maintained by the University of Liverpool that has interactive 3D animations ans structures.  The content is broken up into several areas:

  • A Level;
  • Organic Reactions;
  • Structure and Bonding;
  • Polymers;
  • Solid State.

There is a lot of information on the site, and the information could be used in many courses.  The areas that I find most useful in my sophomore-level inorganic chemistry course.

C(sp3)-F Activation through an Initial C(sp3)-H Activation Mechanism

Submitted by John Lee / University of Tennessee Chattanooga on Wed, 07/18/2012 - 16:35
Description

This paper is from a Science article from Alan Goldman’s group at Rutgers University. It was one of the literature articles that was assigned during the IONiC VIPEr Workshop in July 2012.  In conjunction with reading the article, workshop participants attended a seminar presented by Alan Goldman on this work.

Oxidative Suzuki-Type C-H Functionalization (Learning to Read a Detailed Organic Paper)

Submitted by Matt Whited / Carleton College on Tue, 07/17/2012 - 21:09
Description

This is a literature excercise I used in my upper-level organometallic course to guide students through some of the important points of a detailed organic/organometallic paper.  I have found that the first hurdles in some of these papers involve getting students to the point where they can understand (a) what specific reaction is being performed, and (b) what the role of each reagent is.  This set of questions includes a mix of material, including some things that are specifically stated in the article and some that are implied or referenced elsewhere.  I found that excercises like this one