Reduction formula for point group Cs

Your representation

E h
48 8

can be reduced to

A' A''
28 20

Substraction of translational and rotational contributions results in

A' A''
25 17



Force field analysis

Infrared and Raman activities (harmonic approximation)
Method A' A''
Infrared + +
Raman + +

Number of force field parameters
Force field No. 1 No. 2 No. 3
linear 42 42 25
quadratic 1764 903 478
cubic 74088 13244 6750
quartic 3111696 148995 75045
No. 1 : Total number of force constants .
No. 2 : Total number of force constants k.
No. 3 : Total number of nonvanishing force constants k.

Symmetry properties of force field parameters
Force field A' A''
linear 25 17
quadratic 478 425
cubic 6750 6494
quartic 75045 73950

Number of independant internal coordinates 25

Literature




Character tables for chemically important point groups Character table for point group Cs Jacobs University Bremen