Reduction formula for point group Cs

Your representation

E h
42 14

can be reduced to

A' A''
28 14

Substraction of translational and rotational contributions results in

A' A''
25 11



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 36 36 25
quadratic 1296 666 391
cubic 46656 8436 4575
quartic 1679616 82251 42926
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 11
quadratic 391 275
cubic 4575 3861
quartic 42926 39325

Number of independant internal coordinates 25

Literature




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