Reduction formula for point group C2h

Your representation

E C2 (z) i h
60 0 0 4

can be reduced to

Ag Bg Au Bu
16 14 14 16

Substraction of translational and rotational contributions results in

Ag Bg Au Bu
15 12 13 14



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 54 54 15
quadratic 2916 1485 394
cubic 157464 27720 6974
quartic 8503056 395010 99108
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 15 12 13 14
quadratic 394 362 363 366
cubic 6974 6886 6914 6946
quartic 99108 98586 98614 98702

Number of independant internal coordinates 15

Literature




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