Reduction formula for point group C2h

Your representation

E C2 (z) i h
48 0 0 8

can be reduced to

Ag Bg Au Bu
14 10 10 14

Substraction of translational and rotational contributions results in

Ag Bg Au Bu
13 8 9 12



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 13
quadratic 1764 903 250
cubic 74088 13244 3386
quartic 3111696 148995 37649
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 13 8 9 12
quadratic 250 212 213 228
cubic 3386 3236 3258 3364
quartic 37649 36964 36986 37396

Number of independant internal coordinates 13

Literature




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