Periodic trends in atomic size and electronegativity based on MO calculations
In Haverford College's course Chem 111:Structure and Bonding, we have included a workshop exercise that guides students through their first experience using electronic structure calculations. We use the WebMO interface along with Gaussian03, but the exercise could be adapted for other electronic structure programs. The general structure of the exercise is as follows:
Synthesis of Zinc Oxide Nanoparticles and Characterization by Powder X-ray Diffraction
I designed this lab experiment to introduce students to the uses of powder X-ray diffraction in the context of the synthesis of a technologically relevant material. Zinc oxide nanoparticles can be synthesized readily with reagents that are inexpensive and relatively benign with regard to student use and waste disposal. Two experiments described in J. Chem.
Spectroscopy Tutorial
I just found this neat little web-based tutorial at the University of Alberta. It goes through UV-Vis, IR and NMR. Its coverage of IR is almost exactly what I expect my students to know. In typical "stretch and release" fashion, I teach more, but if my students could do the practice problems on the website, I'd be happy.
The site was put together by Greg Nilsson, Enrico Fok, June Ng and Jason Cooke of the Department of Chemistry.
There are also has some great problems for multinuclear NMR.
The site has a tutorial, practice problems, and live feedback. Way cool!
The [XeF]+ Cation and Ion-Pairing in [MF6]– and [M2F11]– Salts (M = As, Sb, Bi)
This Lewis structure and VSEPR problem is based on a paper from Inorganic Chemistry in 2010 reporting the crystal structures of a series of salts of the [XeF]+ cation. The [MF6]– and [M2F11]– anions (M = As, Sb, Bi) were used as counterions, and in all cases, the [XeF]+ cation interacts with the anion via a weak bond between the Xe and a fluoride of the anion to form an ion-pair in the crystalline solid. These somewhat unusual ions provide an interesting application of the predictive powers of Lewis stru
The Extremely Explosive Carbonyl Diazide Molecule
This Lewis structure and VSEPR problem is based on a paper from Inorganic Chemistry in 2010 reporting the crystal structure of the carbonyl diazide molecule. This relatively simple molecule provides an interesting application of the predictive powers of Lewis structures and VSEPR theory to molecular structure, backed up by experimental data on bond distances and bond angles. Before tackling carbonyl diazide, the students warm up by considering the structures of hydrogen azide and the isolated azide ion. The reference to the original paper is
Communication-style lab reports
For the past four years, I have required my inorganic students to write short 3-page formal lab reports in the form of communication to the Journal of the American Chemical Society. This exercise has relieved some of the stress on my students who are writing reports of other science classes and simplified my grading. Using Jeffrey Kovac's Writing Across the Chemistry Curriculum: An Instructor's Handbook as a starting point, I have developed a rubric to provide qualitative feedback to the stu
Metals and Life by Eleanor Crabb and Elaine Moore
This appears to be an excellent introductory text for bioinorganic chemistry. The authors assume no previous biochemistry knowledge and only a cursory understanding of concepts in inorganic chemistry is required. Any student who has completed general chemistry should find most of the book readily accessible.
Synthesis and characterization of 12-tungstosilicic acid - a modification
A really neat periodic table
A really neat interactive periodic table
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