## Point Group Theory |

This site contains details of various symmetry point groups, their inter-relations and specific information regarding dipole-transition selection rules.

- Introduction and notes to symmetry operations and dipole transitions
- Categorisation of point groups crystal class (cubic, tetragonal etc.)
- Categorisation of point groups by unit cell
- General rules for products of irreducible representations
- Isomorphism and symmetry operation periodicity
- Stereographs for non-cubic crystallographic point groups
- 3D objects for crystallographic point groups
- Example molecules for some point groups
- Correlation tables
- Molecular symmetry test
- Some links.
- Some references for symmetry in physics and chemistry

Some graphics within the site are:and you may wish to read the documentation.