Reduction formula for point group Cs

Your representation

E h
36 6

can be reduced to

A' A''
21 15

Substraction of translational and rotational contributions results in

A' A''
18 12



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 18
quadratic 900 465 249
cubic 27000 4960 2544
quartic 810000 40920 20688
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 18 12
quadratic 249 216
cubic 2544 2416
quartic 20688 20232

Number of independant internal coordinates 18

Literature




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