Reduction formula for point group Cs

Your representation

E h
36 0

can be reduced to

A' A''
18 18

Substraction of translational and rotational contributions results in

A' A''
15 15



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 15
quadratic 900 465 240
cubic 27000 4960 2480
quartic 810000 40920 20520
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 15 15
quadratic 240 225
cubic 2480 2480
quartic 20520 20400

Number of independant internal coordinates 15

Literature




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