Reduction formula for point group C2

Your representation

E C2
36 -4

can be reduced to

A B
16 20

Substraction of translational and rotational contributions results in

A B
14 16



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 30 30 14
quadratic 900 465 241
cubic 27000 4960 2464
quartic 810000 40920 20536
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 14 16
quadratic 241 224
cubic 2464 2496
quartic 20536 20384

Number of independant internal coordinates 14

Literature




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