C18 | E | 2C18 | 2C9 | 2C6 | 2(C9)2 | 2(C18)5 | 2C3 | 2(C18)7 | 2(C9)4 | C2 |
---|---|---|---|---|---|---|---|---|---|---|
A | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
B | 1 | -1 | 1 | -1 | 1 | -1 | 1 | -1 | 1 | -1 |
E1* | 2 | 1.8794 | 1.5321 | 1 | 0.3473 | -0.3473 | -1 | -1.5321 | -1.8794 | -2 |
E2* | 2 | 1.5321 | 0.3473 | -1 | -1.8794 | -1.8794 | -1 | 0.3473 | 1.5321 | 2 |
E3* | 2 | 1 | -1 | -2 | -1 | 1 | 2 | 1 | -1 | -2 |
E4* | 2 | 0.3473 | -1.8794 | -1 | 1.5321 | 1.5321 | -1 | -1.8794 | 0.3473 | 2 |
E5* | 2 | -0.3473 | -1.8794 | 1 | 1.5321 | -1.5321 | -1 | 1.8794 | 0.3473 | -2 |
E6* | 2 | -1 | -1 | 2 | -1 | -1 | 2 | -1 | -1 | 2 |
E7* | 2 | -1.5321 | 0.3473 | 1 | -1.8794 | 1.8794 | -1 | -0.3473 | 1.5321 | -2 |
E8* | 2 | -1.8794 | 1.5321 | -1 | 0.3473 | 0.3473 | -1 | 1.5321 | -1.8794 | 2 |
Number of symmetry elements | h = 18 |
Number of classes, irreps | n = 18 |
Number of real-valued irreducible representations | n = 10 |
Abelian group | yes |
Optical Isomerism (Chirality) | yes |
Polar | yes |
Parity | no |