Reduction formula for point group C2h

Your representation

E C2 (z) i h
48 0 0 0

can be reduced to

Ag Bg Au Bu
12 12 12 12

Substraction of translational and rotational contributions results in

Ag Bg Au Bu
11 10 11 10



Force field analysis

Infrared and Raman activities (harmonic approximation)
Method Ag Bg Au Bu
Infrared - - + +
Raman + + - -

Number of force field parameters
Force field No. 1 No. 2 No. 3
linear 42 42 11
quadratic 1764 903 242
cubic 74088 13244 3322
quartic 3111696 148995 37433
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 Ag Bg Au Bu
linear 11 10 11 10
quadratic 242 220 221 220
cubic 3322 3300 3322 3300
quartic 37433 37180 37202 37180

Number of independant internal coordinates 11

Literature




Character tables for chemically important point groups Character table for point group C2h Jacobs University Bremen