Group 10 and 11 Metal Boratranes (Ni, Pd, Pt, CuCl, AgCl, AuCl, and Au+) Derived from a Triphosphine-Borane

Submitted by Lori Watson / Earlham College on Sun, 03/08/2009 - 15:21
Description
This is a guided set of questions for the paper: Group 10 and 11 Metal Boratranes (Ni, Pd, Pt, CuCl, AgCl,
AuCl, and Au+) Derived from a Triphosphine-Borane.  It was used to help students integrate the study of a variety of techniques (for example NMR, X-ray, computational studies) and basic organometallic chemistry into reading a "real" paper.

Using Computational Chemistry to discuss backbonding to CO

Submitted by Lori Watson / Earlham College on Sun, 03/08/2009 - 15:01
Description

This activity uses Gaussian with the WebMO interface to investigate the role of the metal in backbonding to CO as well as effects of the trans ligands. It can also be used as a way of introducing computational chemistry in an inorganic course.

Contemporary Inorganic Chemists

Submitted by Betsy Jamieson / Smith College on Tue, 01/13/2009 - 11:59
Description
This is an assignment I use to give students a sense of what kinds of problems real life, contemporary inorganic chemists work on.  I start out by having them find 2 contemporary inorganic chemists.  They give a 15-20 min presentation on their two chemists that gives a general overview of their research projects.  Once everyone has done their general presentation, I have students choose a specific journal article by one of their chemists to present in class.  I usually have this assignment run throughout the semester, with the general presentations taking place in the first half of the semeste

House: Inorganic Chemistry

Submitted by Adam Johnson / Harvey Mudd College on Mon, 01/12/2009 - 15:35
Description

House (Inorganic chemistry):  The book is divided into 5 parts:  first, an introductory section on atomic structure, symmetry, and bonding; second, ionic bonding and solids; third, acids, bases and nonaqueous solvents; fourth, descriptive chemistry; and fifth, coordination chemistry.  The first three sections are short, 2-4 chapters each, while the descriptive section (five chapters) and coordination chemistry section (seven chapters covering ligand field theory, spectroscopy, synthesis and reaction chemistry, organometallics, and bioinorganic chemistry.) are longer.  Each chapter includes

Bonding and Electronic Structure of a 14-electron W(II) bound to 4-electron pi-donors

Submitted by Hilary Eppley / DePauw University on Sun, 01/11/2009 - 12:01
Description

This paper is a meaty communication that covers novel bonding of 4 e- π-donors to a 14-electron species. Requires students to apply their knowledge of electron counting and organometallic bonding to ligands that are acting in novel ways.  This also includes exercises dealing with chemical information and general questions that require students to put the science in context. 

The 18 Electron Guideline: A Primer

Submitted by Nancy Williams / Scripps College, Pitzer College, Claremont McKenna College on Sat, 01/10/2009 - 19:35
Description

This consists of two parts (and a solution, which is linked below under "Related Resources", but for which you will need a faculty privileges): a primer for students (best if handed out prior to class so that students can read it beforehand, or delivered in pre-lecture format) and a worksheet. The worksheet is designed to be done in small groups with assistance from an instructor. In very large classes, in which the instructor cannot circle amongst the groups, the instructor can work through each example after the groups have a few minutes to work the problem on their own. 

Electron Counting and a Catalytic Reaction

Submitted by Patrick Holland / Yale University on Mon, 07/28/2008 - 10:30
Description
This Challenge shows a catalytic process, and especially gives practice on electron-counting in transition metal complexes. Inorganic Challenges are exercises designed to be solved by a small group of students. Some Challenges practice a problem-solving algorithm, some reinforce important concepts, and some involve creativity or games.

Computational Modeling of a Molybdenum Piano Stool Complex

Submitted by N. Fackler / Nebraska Wesleyan University on Wed, 07/16/2008 - 15:28
Description

This is a computational/molecular modeling supplement to the synthesis of  [1,3,5-C6H3(CH3)3]MoCO3 included in the third edition of  "Synthesis and Technique in Inorganic Chemistry" (see full citation below)*. Students optimize the model and compute an infrared spectrum and compare it to their experimental (solution) spectrum.

*G. S. Giorlami, T. B. Rauchfuss, R. J. Angelici  “Synthesis and Technique in Inorganic Chemistry: A Laboratory Manual”, Third Edition

Fivefold Bonding in Cr(I) Dimer

Submitted by Maggie Geselbracht / Reed College on Thu, 04/17/2008 - 19:47
Description

This paper describes the synthesis and characterization of a Cr(I) dimer with a very short Cr-Cr distance.  Computational studies support fivefold bonding between the chromium atoms.  I have used this paper to introduce metal-metal multiple bonds and discuss the molecular orbital interactions of homonuclear diatomics including d-orbitals.  More generally, it is a nice example to stimulate the discussion of what constitutes a bond and the various interpretations of bond order.

Fluoro Analogue of Wilkinson's Catalyst

Submitted by Maggie Geselbracht / Reed College on Wed, 04/02/2008 - 01:24
Description
This paper describes the synthesis and characterization of the fluoro analogue of Wilkinson's catalyst [(Ph3P)3RhF]. The fluorine for chlorine switch causes an interesting change in the reactivity, promoting activation of C-Cl bonds in chloroarenes. Discussion of this paper nicely pairs with the chemistry of Wilkinson's catalyst, highlighting periodic trends in bonding and reactivity.
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