Treatment of rotations where an element of symmetry is applied; remember that each molecule belongs to a symmetry group (or point group): C2v, C3v, D4h, Td, C4v, Oh, D3h, D5h, D4d It is necessary to know whether the representation bases (or irreducible representations) are one-dimensional or two-dimensional in addition to knowing what the character of the irreducible matrix or block means…
