Porphyrin UV-Vis

Submitted by Matthew Riehl / Minnesota State University, Mankato on Mon, 11/18/2019 - 16:30

The UV-vis spectra of porphyrins are among the most recognizable spectra in the chemical literature, but the electronic transitions that lead to the observed specta are not as well known.  This presentation provides an introduction to the structure and numbering of porphyrins and the origin of the bands observed in the near UV and visible region, based on the work done by Martin Gouterman beginning in the late 1950's.    

Mechanisms of Mn-catalyzed water oxidation reactions

Submitted by Margaret Scheuermann / Western Washington University on Fri, 10/18/2019 - 19:53

This LO is an in-class assignment to prepare students for literature readings involving catalytic cycles in which multiple protons and electrons are transferred. Two catalytic mechanisms, a proposed OEC mechanism and the proposed mechanism of a biomimetic OEC complexes are included. The intermediates are drawn including all charges and oxidation states, details which are sometimes omitted in the primary literature but can be helpful to students who are not accustomed to looking at multistep catalytic cycles.

2019 Nobel Prize - Li-ion battery LOs

Submitted by Barbara Reisner / James Madison University on Wed, 10/09/2019 - 20:28

Congratulations to the 2019 recipients of the Nobel Prize - John B. Goodenough, M. Stan Whittingham and Akira Yoshino. It's a well deserved honor!

There are several LOs on VIPEr that talk about lithium ion batteries and related systems. The 2019 Nobel is a great opportunity to include something about these batteries in your class.

I hope to see more LOs in the coming weeks so we can bring this chemistry into our classrooms!

Comprehensive literature reading assignment on platinum-based anticancer agents

Submitted by Todsapon T. / University of Evansville on Sun, 06/09/2019 - 16:40

Students read two review articles and one research article on platinum-based cancer therapeutic agents.  These articles compresentively discuss various aspects of these drug agents such as discovery, synthesis, mode of function.  Students read the articles and use the knowledge on coordination chemistry (structure, reactivity, bonding, etc.) to explain the information included in the articles. 



VIPEr Fellows 2019 Workshop Favorites

Submitted by Barbara Reisner / James Madison University on Sat, 06/08/2019 - 16:41

During our first fellows workshop, the first cohort of VIPEr fellows pulled together learning objects that they've used and liked or want to try the next time they teach their inorganic courses.

Venn Diagram activity- What is inorganic Chemistry?

Submitted by Sheila Smith / University of Michigan- Dearborn on Thu, 01/03/2019 - 18:02

This Learning Object came to being sort of (In-)organically on the first day of my sophomore level intro to inorganic course. As I always do, I started the course with the IC Top 10 First Day Activity. (https://www.ionicviper.org/classactivity/ic-top-10-first-day-activity).  One of the pieces of that In class activity asks students- novices at Inorganic Chemistry- to sort the articles from the Most Read Articles from Inorganic Chemistry into bins of the various subdisciplines of Inorganic Chemistry.

Getting to Know the MetalPDB

Submitted by Anthony L. Fernandez / Merrimack College on Fri, 07/06/2018 - 11:29

When teaching my advanced bioinorganic chemistry course, I extensively incorporate structures from Protein Data Bank in both my assignments and classroom discussions and mini-lectures.

Interpreting Reaction Profile Energy Diagrams: Experiment vs. Computation

Submitted by Douglas A. Vander Griend / Calvin College on Sat, 06/23/2018 - 10:56

The associated paper by Lehnert et al. uses DFT to investigate the reaction mechanism whereby a flavodiiron nitric oxide reductase mimic reduces two NO molecules to N2O. While being a rather long and technical paper, it does include several figures that highlight the reaction profile of the 4-step reaction. This LO is designed to help students learn how to recognize and interpret such diagrams, based on free energy in this case. Furthermore, using a simple form of the Arrhenius equation (eq.

Bonding and MO Theory in Flavodiiron Nitrosyl Model Complexes - Foundation Level

Submitted by James F. Dunne / Central College on Fri, 06/22/2018 - 22:31

This acitivty is a foundation level discussion of the Nicolai Lehnert paper, "Mechanism of N-N Bond Formation by Transition Metal-Nitrosyl Complexes: Modeling Flavodiiron Nitric Oxide Reductases".  Its focus lies in discussing MO theory as it relates to Lewis structures, as well as an analysis of the strucutre of a literature paper.