Reduction formula for point group C2h

Your representation

E C2 (z) i h
324 0 0 24

can be reduced to

Ag Bg Au Bu
87 75 75 87

Substraction of translational and rotational contributions results in

Ag Bg Au Bu
86 73 74 85



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 86
quadratic 101124 50721 12872
cubic 32157432 5410240 1354172
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 86 73 74 85
quadratic 12872 12568 12569 12712
cubic 1354172 1350948 1351108 1354012
quartic XXX*XXX*XXX*XXX*
*Not calculated for systems with more than 75 atoms

Number of independant internal coordinates 86

Literature




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