Symmetry of Molecule

Successive operations   as we have already studied about some operation for the symmetry in molecule there are mainly five operation which are as follow  axes of symmetry Plane of symmetry Improper rotational axis Center of symmetry Identity element there are few more operation which are the combination and the repetition of the above operation which brings in its identity such operations are known as successive operations. For Example  1. In Ammonia NH3 possesses a C3 axis tells us that we can rotate the molecule through 120 0  and end up with a molecular configuration that is indistinguishable from the first. However, it takes three such operations to give a configuration of the NH3 molecule that exactly coincides with the first. The three separate  120 0  rotations are identified by using the notation in Figure . We cannot actually distinguish between the three H atoms, but for clarity they are labelled H(1), H(2) and H(3) in the f...

Symmetry Symmetry  (from  Greek  συμμετρία  symmetria  "agreement in dimensions, due proportion, arrangement") in everyday language refers to a sense of harmonious and beautiful proportion and balance. In mathematics, "symmetry" has a more precise definition, and is usually used to refer to an object that is  invariant  under some  transformations ; including  translation ,  reflection ,  rotation  or  scaling . Symmetry Operations Some geometrical manipulation on the molecule in such a way that an ‘equivalent’ or indistinguishable’ product configuration of the molecule always results after the operation. Point for remembering for symmetry operations ·          While doing a symmetry operation, one has to keep in mind that the ‘center of gravity’ of the molecule must not be shifted. ·          The new product configu...