Reduction formula for point group C2h

Your representation

E C2 (z) i h
252 0 0 4

can be reduced to

Ag Bg Au Bu
64 62 62 64

Substraction of translational and rotational contributions results in

Ag Bg Au Bu
63 60 61 62



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 246 246 63
quadratic 60516 30381 7690
cubic 14886936 2511496 628062
quartic XXX*XXX*XXX*
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 63 60 61 62
quadratic 7690 7562 7563 7566
cubic 628062 627686 627810 627938
quartic XXX*XXX*XXX*XXX*
*Not calculated for systems with more than 75 atoms

Number of independant internal coordinates 63

Literature




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