Nanomaterials for Carbon Dioxide Reduction

Submitted by Anne Bentley / Lewis & Clark College on Mon, 03/27/2017 - 12:58
Description

This literature discussion is based on an article describing the use of copper nanoparticles on an N-doped textured graphene material to carry out the highly selective reduction of CO2 to ethanol (Yang Song et al., “High-Selectivity Electrochemical Conversion of CO2 to Ethanol using a Copper Nanoparticle / N-Doped Graphene Electrode” ChemistrySelect 2016, 1, 6055-6061.  DOI: 10.1002/slct.201601169). The article provides a good introduction to the concepts of electrochemical reduction, selectivity and recycling of fossil fuels.

KINETICS - Computations vs. Experiment

Submitted by Teresa J Bixby / Lewis University on Sat, 03/25/2017 - 12:10
Description

<p>This activity has students use Spartan to build an energy diagram for an SN2 reaction as a function of bond length. The activation energy can then be used to determine the rate constant for the reaction. After a few intoductory questions to orient general chemistry students to the organic reaction (with a short class discussion), the instructions lead them step-by-step to build the energy diagram for CH&lt;sub&gt;3&lt;/sub&gt;Cl + Cl- --&gt; Cl- + CH&lt;sub&gt;3&lt;/sub&gt;Cl.

Reactivity and Bonding of Complexes with Metal-Metal Bonds

Submitted by Chantal Stieber / Cal Poly Pomona on Wed, 03/01/2017 - 19:04
Description

This problem set was designed to be an in-class activity for students to practice applying their knowledge of metal-metal bonding (as discussed in the previous lecture) to recently published complexes in the literature. In this activity, complexes from four papers by Christine M. Thomas and coworkers are examined to give students practice in electron counting (CBC method), drawing molecular orbitals, and fundamental organometallic reactions.

Diverting Wilkinson's Catalyst: Critical Analysis of a Literature Paper

Submitted by Matt Whited / Carleton College on Tue, 02/21/2017 - 18:52
Description

This LO is a problem-set-style literature discussion that leads students through a critical analysis of an interesting but flawed paper from the recent chemical literature.  Students use the questions to help them work through the paper prior to class, providing plenty of raw material for an in-class discussion about various aspects of the work from a mechanistic organometallic perspective.  The questions help students critically analyze substrate tables, spectroscopic data, and computational results from DFT.

Six-coordinate Carbon In-class Activity

Submitted by Kyle Grice / DePaul University on Fri, 02/03/2017 - 22:29
Description

This is an in-class exercise developed based on a recent paper in Angewandte Chemie International Edition that reported a crystal structure of "six-coordinate" carbon. We normally think of carbon being four-coordinate at most, but this case has definitive evidence otherwise. However, we can use our inorganic chemistry knowledge to understand the structure and bonding of this molecule and rationalize its stability. Students do a pre-class exercise and then construct the MO of fhe molecule in class together. 

Iron Catalysts for Lactide Polymerization

Submitted by Anthony L. Fernandez / Merrimack College on Fri, 01/27/2017 - 21:11
Description

This set of questions is intended to guide students through an excellent article by Jeff Byers and co-workers that describes the us

Guided Literature Discussion of “Synthesis, Electrochemistry, and Reactivity of Half-Sandwich Ruthenium Complexes Bearing Metallocene-Based Bisphosphines”

Submitted by M. Watzky / University of Northern Colorado on Tue, 01/03/2017 - 13:09
Description

This Guided Literature Discussion was assigned as a course project, and is the result of work originated by students Stefanie Barnett and Katelyn Yowell.  It is based on the article “Synthesis, Electrochemistry, and Reactivity of Half-Sandwich Ruthenium Complexes Bearing Metallocene-Based Bisphosphines”, Shaw, A.P.; Norton, J.R.; Bucella, D.; Sites, L.A.; Kleinbach, S.S.; Jarem, D.A.; Bocage, K.M.; Nataro, C. Organometallics 2009, 28, 3804-3814.

Understanding the Mechanism of Grubbs-Catalyzed Olefin Metathesis

Submitted by Richard Lord / Grand Valley State University on Wed, 12/28/2016 - 10:42
Description

A literature discussion has been developed for two courses: (i) a more basic set of questions appropriate for a sophomore level course or, possibly, a one semester upper level course that does not spend much time on organometallics, and (ii) an in-depth, in- and out-of-class set of assignments appropriate for an organometallics unit or course. Both sets of questions explore the mechanism of olefin metathesis in first- and second-generation Grubbs catalysts using a variety of spectroscopic kinetic techniques that were presented in the paper Sanford, M. S.; Love, J. A.; Grubbs, R. H. J.

X-ray Crystallography

Submitted by David J Harding / Walailak University on Thu, 12/15/2016 - 22:58
Description

The website shared here includes excellent simulations concerning a wide variety of techniques commonly used in materials science and inorganic chemistry. I have found it particularly useful for X-ray crystallography as the simulations help understand the lectures.