Reduction formula for point group C2

Your representation

E C2
324 0

can be reduced to

A B
162 162

Substraction of translational and rotational contributions results in

A B
160 158



Force field analysis

Infrared and Raman activities (harmonic approximation)
Method A B
Infrared + +
Raman + +

Number of force field parameters
Force field No. 1 No. 2 No. 3
linear 318 318 160
quadratic 101124 50721 25441
cubic 32157432 5410240 2705280
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 B
linear 160 158
quadratic 25441 25280
cubic 2705280 2704960
quartic XXX*XXX*
*Not calculated for systems with more than 75 atoms

Number of independant internal coordinates 160

Literature




Character tables for chemically important point groups Character table for point group C2 Jacobs University Bremen