Reduction formula for point group Cs

Your representation

E h
252 4

can be reduced to

A' A''
128 124

Substraction of translational and rotational contributions results in

A' A''
125 121



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 246 246 125
quadratic 60516 30381 15256
cubic 14886936 2511496 1256000
quartic XXX*XXX*XXX*
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 125 121
quadratic 15256 15125
cubic 1256000 1255496
quartic XXX*XXX*
*Not calculated for systems with more than 75 atoms

Number of independant internal coordinates 125

Literature




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