A contest across VIPEr, the Virtual Inorganic Pedagogical Electronic Resource.
Here is a chance to show your symmetry skills to all the inorganic chemists and students of inorganic chemistry on ionicviper.org!
Given a cube and 6 equal length lines how many objects of different point group symmetry can you construct? All six lines must fit either edge to edge or vertex to vertex (it is ok to mix and match if you want), and each face must have one and only one line on it.
The student who comes up with the most examples of different point groups (you only get credit for one object from each point group) wins! Send me an email using the contact info on my profile on this website with your submission. For the 2009 contest, submissions are due March 13th. The prize is a selection of fun VIPEr products including your own snake mascot, and the opportunity to be prominently featured on the VIPEr home page!
Here are two to get you started:
a) the 6 lines go vertex to vertex, it is a tetrahedron inscribed in a cube with Td symmetry
b) a mixture of edge to edge and vertex to vertex, this object has Cs symmetry
How many more can you come up with?