X-Nico

unusual facts about Point groups in three dimensions|D2D2 symmetry.

This is a powerful application of group theory to vibrational spectroscopy, and allows one to easily detect the presence of this symmetry element by comparison of the IR and Raman spectra generated by the same molecule.

Symmetry operation

The four symmetry operations E, C2, σ(xz)and σ(yz) form the point group C2v.


see also