This is a reference web site for group theory and the properties of symmetry point groups. It covers the mathematics and science applications of symmetry relations, including the impact on interactions with specific reference to dipole-transition selection rules. Unit cells, stereograms, and 3D animated molecules are presented as examples of each point group. This web site also provides other symmetry related links and a link to references for symmetry in physics and chemistry.

Please note that this resource requires at least version 1.1 of Java.