Reduction formula for point group Cs

Your representation

E h
42 2

can be reduced to

A' A''
22 20

Substraction of translational and rotational contributions results in

A' A''
19 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 36 36 19
quadratic 1296 666 343
cubic 46656 8436 4237
quartic 1679616 82251 41230
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 19 17
quadratic 343 323
cubic 4237 4199
quartic 41230 41021

Number of independant internal coordinates 19

Literature




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