ABSTRACT
Molecules having all the symmetry elements similar are placed in same group and these groups are termed as point group. For example, H2O, SO2, both the molecules are structurally different, but have same four symmetry elements, i.e., E, C2, 2 σv. Therefore, these are assigned the same point group, i.e., C2v. A complete set of symmetry operations follows some mathematical group rules. A mathematical group is a collection of elements, which are interrelated according to rules of group theory.
