Synthesis and characterization of 12-tungstosilicic acid - a modification

Submitted by Randall Hicks / Wheaton College on Mon, 11/15/2010 - 23:25
Description
This lab experiment is an update on the synthesis of the title acid. An account of this synthesis can be found in William Jolly's book, The Synthesis and Characterization of Inorganic Compounds. The synthetic procedure is reliable and was retained. However, I modified some content and added components to extend to a two-week experiment. This lab now covers the synthesis, an acid-base titration with error analysis, and the use of TGA to complement the titration results.

Inorganic Chemistry of Organ Pipes: Composition and Corrosion

Submitted by Catherine Oertel / Oberlin College on Thu, 09/30/2010 - 14:46
Description

This presentation provides an inorganic chemist's perspective on metals used to make organ pipes and their corrosion and conservation.  The slides highlight my own research in this area as well as work being done by other scientists around the world.  The purpose of this learning object is to show students an application of inorganic chemistry that they probably have not encountered before and show an example of how analytical methods of materials chemistry can be used in conservation science.   

Cyclic voltammetry

Submitted by Chip Nataro / Lafayette College on Wed, 09/29/2010 - 07:28
Description

This is a short presentation on cyclic voltammetry. It is covers the basics and some simple electrode mechanisms. There is room for improvement (especially in my art) and suggestions are welcome.

First Isolation of the AsP3 Molecule

Submitted by Anne Bentley / Lewis & Clark College on Fri, 09/03/2010 - 13:47
Description

Early in 2009, Christopher Cummins’ group at MIT reported (in Science) the synthesis of AsP3, a compound that had never been isolated at room temperature.  Later that year, a full article was published in JACS comparing the properties and reactivity of AsP3 to those of its molecular cousins, P4 and As4.  The longer article is full of possibilities for discussion in inorganic chemistry courses, with topics including periodic trends, NMR, vibrational spectroscopy, electrochemistry, molecular orbital theory, and coordination chemistry.

Towards "Personalized Solar Energy": An Inexpensive Oxygen-Evolving Catalyst

Submitted by Anne Bentley / Lewis & Clark College on Fri, 08/27/2010 - 15:54
Description

In the two years since this article was published, it has jump-started a large amount of research in the area of cobalt-based catalysts for solar water splitting.  The paper describes the electrochemical synthesis and oxygen-evolution capabilities of a Co-phosphate catalyst under very mild conditions.  The paper can stimulate discussion of many topics found in the inorganic curriculum, including electrochemistry, semiconductor chemistry, transition metal ion complex kinetic trends, and solid state and electrochemical characterization techniques.

Powder Diffraction Crystallography Instructional Materials

Submitted by Barbara Reisner / James Madison University on Mon, 06/28/2010 - 11:03
Description
Brian Toby (Argonne National Labs) has assebled an excellent series of tutorials on using the Rietveld analysis technique for powder diffraction data. Tutorials range from an "Introduction to Crystallography" and "Getting Started with Rietveld" to using the "Le Bail Intensity Extraction" Method to "Advanced Rietveld Techniques."

Pyrophoric Liquid Safety Video

Submitted by Adam Johnson / Harvey Mudd College on Wed, 01/13/2010 - 14:18
Description

This website is a video put out by UCLA and is a good general introduction to using pyrophorics.  It would be good for required viewing for ALL researchers who intend to use Grignards, alkyl metals, organometallics, LiH, etc.

Updated June 2015 to provide a new link; the old link no longer worked.

Student-Led Organometallics

Submitted by Adam Johnson / Harvey Mudd College on Mon, 01/11/2010 - 19:42
Description

I teach my organometallics course, a junior/senior level half-course, entirely as student-led presentations of the primary literature.  In the past, the course was populated almost entirely with seniors who had already taken a one-semester advanced inorganic course.  This past year, I taught it to juniors and seniors, and the juniors had not taken inorganic yet.  A description of the course first appeared in J. Chem. Educ. in 2007 (link below).  This VIPEr learning object is an update of the original paper based on my experience over the past two years.