C4v molecular point group
= C4v molecular point group
{c}
{title2=$C_{4v}$}
The eight-operation <molecular point group> of an ideal square pyramid. Its polar-vector components transform as $A_1$ for the principal-axis coordinate and $E$ for the transverse pair. Symmetric quadratic functions also contain $B_1$ and $B_2$, allowing <Raman spectroscopy> activity beyond the <infrared> modes.