This is the procedure for a Fe(III) catalyzed synthesis of aspirin, an alternative to the traditionally sulfuric acid catalyzed synthesis of aspirin. The prep compares and contrasts the Bronsted acid catalyzed esterification reaction with a Lewis acid iron (III) catalyzed pathway. This can be used in different courses at different levels, but is it written for a general/intro level chemistry course.
This is a resource that has short, animated tutorials on a variety of different topics. Most of the topics are materials science and/or engineering topics but there are several that would be of interest to chemistry students. (A full list of topics is given below.)
In this activity, students will use gummies and toothpicks to construct models of molecules that will then be analyzed for their symmetry elements, and ultimately placed into the correct point group and the models can then be consumed.
In this activity, Introductory Chemistry students are given two possible structures of sulfur dioxide, and based on an assessment of given vibrational modes, they determine which of the modes are IR active (and thus, whether the molecule is a greenhouse gas). They compare their assessment to experimental IR absorption peaks, and the students decide which structure is valid.
Class activity:
An introduction to research, both laboratory and scientific literature.
Before Class: Read the essay by Martin Schwartz entitled “The importance of stupidity in scientific research”, Journal of Cell Science, 2008, 1771. http://jcs.biologists.org/content/121/11/1771.full.pdf
Introductory Class Discussion:
This in-class activity is designed to give general chemistry students practice with drawing Lewis structures. Small groups of 3-5 students compete for points by creating hypothetical molecules that meet criteria (numbers of elements and atoms) assigned by the professor. Beginning with simple molecules, the basic challenge format calls for increasingly complex criteria in successive rounds of competition. One optional variation also allows student groups to challenge each other for bonus points.
This assignment introduces students to the various sub-disciplines of Inorganic chemistry and requires them to examine the current literature throughout the semester. The assignment is introduced the first day of class as part of a discussion on the breadth of inorganic chemistry. I review the journals published by the American Chemical Society and discuss which contain papers related to inorganic chemistry.
Towards the end of the semester, when we were starting to read more of the primary literature, I realized that the Miller Indices were present in most of the papers that I wanted to discuss. However, I couldn't find any good resources in textbooks that would help to explain what these were. I found this online resource through the University of Cambridge that is engaging, interactive and concise.
The Materials Project is part of the Materials Genome Initiative that uses high-througput computing to uncover the properties of inorganic materials.
It's possible to search for materials and their properties
It employs high-throughput computation approaches and IT to create a system that can be used to predict properties and construct phase diagrams andPourbaix diagrams.
This is just a cool little website I just happened to stumble upon today while looking for something else at the RSC site. It comes from China, and it is pretty!