Cobalt Schiff Base Zinc Finger Inhibitors
This is a literature discussion based on the paper “Spectroscopic Elucidation of the Inhibitory Mechanism of Cys2
This is a literature discussion based on the paper “Spectroscopic Elucidation of the Inhibitory Mechanism of Cys2
This learning object focuses on a recent publication (Acta Crystallographia 2014, C70, 260 -266) by the Collins research group in the Department of Chemistry at The College of Wooster. Specifically, the paper evaluates the coordination diversity of a N-donor ligand, 2-phenyl-1,10-phenanthroline(pnp) with three new pnp-metal complexes containing Au(III), Cu(II), and Pd(II) metal centers.
Introducing you to 3DMolSym: A Web Resource for Teaching Molecular Symmetry that uses Adobe Shockwave for Visualizations and Animations.
Note there is a slight difference when operating this resource on a Mac or in a Windows Operating Systerm. On a Mac if you don't change an item (any item) in the pull down menu on the right when the resouce opens, the selection of molecules will be frame shifted by one molecule. An easy fix is described in the Description below.
I have provided a link to a Web Resource: The Strucutre and Symmetry of Metal Tris Chelates which I developed several years ago with my collegue Henry Rzepa from Imperial College London (and which was posted as Web Ware on the Jourmal of Chemical Education Website and is not longer available to view there). The Web site uses 3D images of known molecules and scripted commands to teach about the symmetry elements and operations in these molecules. Instruction is also given on assigning absolute configurations and ligand twist conformations. Animations of the Bailar Twist and Ray Dutt Mech
This in-class activity walks students through the preparation of a molecular-orbital diagram for methane in a square-planar environment. The students generate ligand-group orbitals (LGOs) for the set of 4 H(1s) orbitals and then interact these with carbon, ultimately finding that such a geometry is strongly disfavored because it does not maximize H/C bonding and leaves a lone pair on C.
Having been inspired by a number of wonderful LOs, I introduced group theory in my 'sophomore' inorganic class this spring. In addition to learning to determine the point group of a molecule, students were taught how to construct a qualitative MO diagram though the use of LGOs. While a little more than 5 slides, this is what I used in lecture to cover the material.
While informally chatting with friends in our math department, I realized that I could put together a presentation about how chemists use group theory. I was invited to give the presentation as part of our math department's weekly colloquium series. The talk was to be one hour in length, and my math colleague described their typical format as:
Having been inspired by a number of wonderful LOs, I introduced group theory in my 'sophomore' inorganic class this spring. In addition to learning to determine the point group of a molecule, students were taught how to construct a qualitative MO diagram though the use of LGOs. While this course can be taken with or without the laboratory component, it seemed only natural to include a lab on this material. A previous lab had introduced the students to computational methods for geometry optimization.
Two excellent video presentations on symmetry. The Ted Talk by Marcus du Sautoy is an excellent introduction to the concept of symmetry and systematically describing it. In "Impossible Crystals" Nobel Laureate and physicist Paul Steinhardt discusses the creation of "Impossible crystals": quasi-crystals with five-fold symmetry previously believed impossible.
During my junior/senior level inorganic course, we did several guided literature discussions over the course of the semester where the students read papers and answered a series of questions based on them (some from this site!). As part of my take home final exam, I gave the students an open choice literature analysis question where they had the chance to integrate topics from the semester into their interpretation of a recent paper of their own choice from Inorganic Chemistry, this time with limited guidance.