Reduction formula for point group C2

Your representation

E C2
48 0

can be reduced to

A B
24 24

Substraction of translational and rotational contributions results in

A B
22 20



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 42 42 22
quadratic 1764 903 463
cubic 74088 13244 6644
quartic 3111696 148995 74635
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 22 20
quadratic 463 440
cubic 6644 6600
quartic 74635 74360

Number of independant internal coordinates 22

Literature




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