Reduction formula for point group C2

Your representation

E C2
120 0

can be reduced to

A B
60 60

Substraction of translational and rotational contributions results in

A B
58 56



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 114 114 58
quadratic 12996 6555 3307
cubic 1481544 253460 126788
quartic 168896016 7413705 3707737
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 58 56
quadratic 3307 3248
cubic 126788 126672
quartic 3707737 3705968

Number of independant internal coordinates 58

Literature




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