In-Class Review Questions for Metal Carbonyl Complexes

Submitted by Chris Goldsmith / Auburn University on Wed, 02/11/2015 - 11:24
Description

The slides provide review questions for a senior-level treatment of the spectroscopy and reactivity of metal carbonyl complexes. These are intended to be dispersed through one to three class periods.

The first slide is a review of electron counting and the 18-electron rule.

The second slide quizzes the students on the relationship between the electron-density of the metal center and the strength of the C-O bonds in the carbonyl ligands. It is intended to be given after a discussion of how IR can be used to assess the strength of M-C and C-O bonds in the compounds.

Play-Doh Molecular Orbitals

Submitted by Sheri Lense / University of Wisconsin Oshkosh on Mon, 02/02/2015 - 13:56
Description

This is a simple activity designed to help students visualize the interaction of atomic orbitals to form molecular orbitals.  Students construct atomic orbitals out of Play-Doh and determine whether overlap of a given pairs of atomic orbitals along the specified axis can result in a σ, π, or δ interaction or no net interaction.  I do this activity following a reading assignment and lecture on the formation of molecular orbitals from atomic orbitals that cover the various types of interactions.  Students then work in groups of 3-4 to complete the instructions described on the attached worksh

Literature Introduction to Coordination Complexes

Submitted by Anne Bentley / Lewis & Clark College on Wed, 01/28/2015 - 16:21
Description

Students are asked to find a coordination complex in the recent literature and analyze its structure. This homework or in-class activity is a great way for the instructor to crowd source the discovery of interesting new complexes to use as material in future exams.

Organometallics course F 2014

Submitted by Adam Johnson / Harvey Mudd College on Fri, 01/23/2015 - 16:54

This is a collection of LOs that I used to teach a junior-senior seminar course on organometallics during Fall 2014 at Harvey Mudd College.

Introduction to Mercury

Submitted by Anthony L. Fernandez / Merrimack College on Thu, 01/22/2015 - 20:57
Description

In this exercise, students are introduced to Mercury, a program for visualizing and analyzing crystal structure data.  Students are guided through opening the program for the first time and viewing a structure from the Teaching Subset, a selection of structures from the Cambridge Crystallographic Database (CSD). Activites include changing the representation of the complex, moving the structure around the window, accessing information about the structure, and measuring bond lengths and angles within the structure.

Spacegroup visualizer

Submitted by Barbara Reisner / James Madison University on Mon, 01/19/2015 - 22:48
Description

This looks like a great resource to visualize the data contained in the international tables in 3D.

My colleague, John GIlje, recommended this resource to me. It's not something I'll use on a day to day basis because it requires a PC.

Ligand Effects in Pd-Catalyzed Cross Coupling

Submitted by Matt Whited / Carleton College on Fri, 01/09/2015 - 14:30
Description

This set of questions was used to promote discussion within small groups (3 to 4 students) on how changing ligand properties can have dramatic effects on the product distributions in Pd-catalyzed cross coupling reactions.  The questions are pretty difficult and not always straightforward, partly because they are derived from the primary literature and thus inherently "messy".

The Importance of the Trans Effect in the Synthesis of Novel Anti-Cancer Complexes

Submitted by Sheri Lense / University of Wisconsin Oshkosh on Mon, 01/05/2015 - 15:04
Description

In this activity, students apply knowledge of the trans effect to the synthesis of planar Pt(II) complexes that contain cis-amine/ammine motifs.  These complexes are of interest as both potential novel chemotherapeutic Pt(II) complexes and as intermediates for promising chemotherapeutic drugs such as satraplatin.  The questions in this LO are based on recent research described in the paper “Improvements in the synthesis and understanding of the iodo-bridged intermediate en route to the Pt(IV) prodrug satraplatin,” by Timothy C. Johnstone and Stephen C.

The Color and Electronic Configurations of Prussian Blue

Submitted by EGunn / Simmons College on Mon, 01/05/2015 - 14:47
Description

I used this paper to illustrate several course concepts related to materials structure (crystal lattice structure, coordination number, crystal field theory and orbital splitting, symmetry, electronic spectra, allowed and forbidden transitions). This activity was paired with a laboratory experiment (see related VIPEr objects) in which students synthesized Prussian Blue, and gave students a really in-depth look at what was going on when they mixed those solutions together.

d-Orbital Splitting Patterns in a Variety of Ligand Geometries

Submitted by Anthony L. Fernandez / Merrimack College on Mon, 12/29/2014 - 10:43
Description

In this activity, the provided d orbital splitting patterns need to be matched with ligand geometries. Students are provided with the d orbital splitting diagrams for 6 ligand geometries (octahedral, trigonal bipyramidal, square pyramidal, tetrahedral, square planar, and linear). A web browser is used to view an animation (developed by Flick Coleman) which allows for the visualization of the relationship between the positions of the metal d orbitals and the ligands. Given this information, students should then be able to qualitatively rank the orbitals from highest to lowest energy.