Five Slides about X-ray Photoelectron Spectroscopy (XPS)

Submitted by Sophia E. Hayes / Washington University on Fri, 06/28/2013 - 09:35

This is a short presentation giving an overview of x-ray photoelectron spectroscopy (XPS), meant to be an introduction for those who are unfamiliar with the technique.

Trends in Measured Redox Potentials and Computed Molecular Orbital Energies of Derivatized Buckminsterfullerenes

Submitted by Robert Q. Topper / Cooper Union on Tue, 06/25/2013 - 01:55

In this project students are asked to reproduce published calculations of molecular orbital energies of a series of derivatized fullerenes and correlate them with published reduction and oxidation potentials obtained from cyclic voltammetry. The particular subset of the derivatives to be studied are chosen by the student and this choice is part of the learning activity. The students then carry out additional calculations using other theoretical models to see whether they improve the correlation between computed and experimental properties.

Lithium Diazenide Surprise!

Submitted by Maggie Geselbracht / Reed College on Fri, 05/31/2013 - 23:00

Students in a sophomore-level inorganic chemistry course were asked to read the paper “High-Pressure Synthesis and Characterization of the Alkali Diazenide Li2N2” (Angew. Chem. Int. Ed. 2012, 51, 1873-1875. DOI: 10.1002/anie.201108252) in preparation for a class discussion.  For many students, this was a first exposure to reading the primary literature. 

So Much Nitrogen: Maggie's Explosive Main Group Compounds

Submitted by W. Stephen McNeil / University of British Columbia Okanagan on Thu, 03/21/2013 - 00:47

Maggie Geselbracht has a great fondness for compounds with too many nitrogen atoms next to each other.  This is a collection of problem sets and class activites based on the structure, bonding, and spectroscopy of a number of such compounds, drawn from the recent literature.

Voices of Inorganic Chemistry

Submitted by Sibrina Collins / Marburger STEM Center (MSC) at Lawrence Technological University on Sun, 01/27/2013 - 17:08

This learning object focuses on the new video series, “Voices in Inorganic Chemistry,” established to commemorate the 50th anniversary of the American Chemical Society journal, Inorganic Chemistry. The are currently 12 videos celebrating pioneers in the field of inorganic chemistry.  This activity consists of two components, namely the students watching one interview and writing an essay about their chosen inorganic chemist.

Metal-Ligand Multiple Bonds and Frustrated Lewis Pairs

Submitted by Matt Whited / Carleton College on Wed, 10/10/2012 - 14:40

This is a literature-based activity that focuses on a review I recently published as part of a thematic series on C-H activation.

The review highlights similarities between the newly discovered frustrated Lewis pairs and polarized metal-ligand multiple bonds.  There are many ways to use the review, but the attached set of questions focuses on drawing analogies among seemingly diverse types of reactivity using frontier-molecular-orbital considerations.

High Energy Density Materials: A laboratory and literature investigation (Christe)

Submitted by Kevin Hoke / Berry College on Fri, 07/13/2012 - 21:12

The synthesis of the nitrogen triiodide ammoniate shock-sensitive explosive is a simple laboratory exercise, but it does require a lengthy time for the material to dry before it is active.  This activity uses that time to have students investigate some simple thermodynamics behind their explosive, as well as consult the literature on high energy density materials from the work of Karl O. Christe.

There is also a shorter version of the activity posted as an in-class activity that omits most of the literature investigation.

VIPEr Screencast

Submitted by Chip Nataro / Lafayette College on Wed, 05/09/2012 - 10:27

This screencast is a brief introduction to some of the features of VIPEr.

19F NMR In-class exercise

Submitted by Sheila Smith / University of Michigan- Dearborn on Mon, 04/04/2011 - 12:27

This is an in class activity to introduce the topic of multinuclear NMR, which is not covered (beyond 13C) in our sophomore level organic course. It is designed to walk the students through the process of predicting NMR spectra, as they learned in sophomore organic chemistry, but for a different I=1/2 nucleus, in this case 19F, which is I=1/2 and 100% abundant.