S18 | E | 2C9 | 2(C9)2 | 2C3 | 2(C9)4 | i | 2(S18)7 | 2(S18)5 | 2S6 | 2S18 |
---|---|---|---|---|---|---|---|---|---|---|
Ag | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
E1g* | 2 | 1.5321 | 0.3473 | -1 | -1.8794 | 2 | 1.5321 | 0.3473 | -1 | -1.8794 |
E2g* | 2 | 0.3473 | -1.8794 | -1 | 1.5321 | 2 | 0.3473 | -1.8794 | -1 | 1.5321 |
E3g* | 2 | -1 | -1 | 2 | -1 | 2 | -1 | -1 | 2 | -1 |
E4g* | 2 | -1.8794 | 1.5321 | -1 | 0.3473 | 2 | -1.8794 | 1.5321 | -1 | 0.3473 |
Au | 1 | 1 | 1 | 1 | 1 | -1 | -1 | -1 | -1 | -1 |
E1u* | 2 | 1.5321 | 0.3473 | -1 | -1.8794 | -2 | -1.5321 | -0.3473 | 1 | 1.8794 |
E2u* | 2 | 0.3473 | -1.8794 | -1 | 1.5321 | -2 | -0.3473 | 1.8794 | 1 | -1.5321 |
E3u* | 2 | -1 | -1 | 2 | -1 | -2 | 1 | 1 | -2 | 1 |
E4u* | 2 | -1.8794 | 1.5321 | -1 | 0.3473 | -2 | 1.8794 | -1.5321 | 1 | -0.3473 |
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) | no |
Polar | no |
Parity | yes |