Reduction formula for point group C2h

Your representation

E C2 (z) i h
324 0 0 12

can be reduced to

Ag Bg Au Bu
84 78 78 84

Substraction of translational and rotational contributions results in

Ag Bg Au Bu
83 76 77 82



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 318 318 83
quadratic 101124 50721 12818
cubic 32157432 5410240 1353190
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 83 76 77 82
quadratic 12818 12622 12623 12658
cubic 1353190 1351930 1352090 1353030
quartic XXX*XXX*XXX*XXX*
*Not calculated for systems with more than 75 atoms

Number of independant internal coordinates 83

Literature




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