Reduction formula for point group Cs

Your representation

E h
36 4

can be reduced to

A' A''
20 16

Substraction of translational and rotational contributions results in

A' A''
17 13



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 30 30 17
quadratic 900 465 244
cubic 27000 4960 2516
quartic 810000 40920 20588
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 17 13
quadratic 244 221
cubic 2516 2444
quartic 20588 20332

Number of independant internal coordinates 17

Literature




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