Reduction formula for point group C2

Your representation

E C2
180 0

can be reduced to

A B
90 90

Substraction of translational and rotational contributions results in

A B
88 86



Force field analysis

Infrared and Raman activities (harmonic approximation)
Method A B
Infrared + +
Raman + +

Number of force field parameters
Force field No. 1 No. 2 No. 3
linear 174 174 88
quadratic 30276 15225 7657
cubic 5268024 893200 446688
quartic 916636176 39524100 19764052
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 A B
linear 88 86
quadratic 7657 7568
cubic 446688 446512
quartic 19764052 19760048

Number of independant internal coordinates 88

Literature




Character tables for chemically important point groups Character table for point group C2 Jacobs University Bremen