=exp(2
i/7)| C7 | E | C7 | (C7)2 | (C7)3 | (C7)4 | (C7)5 | (C7)6 | rotations |
functions |
functions |
|---|---|---|---|---|---|---|---|---|---|---|
| A | +1 | +1 | +1 | +1 | +1 | +1 | +1 | z, Rz | x2+y2, z2 | z3, z(x2+y2) |
| E1 | +1 +1 |
+![]() + * | + 2+ 2* | + 3+ 3* | + 3*+ 3 | + 2*+ 2 | + *+ ![]() | x+iy, Rx+iRy x-iy, Rx-iRy |
(xz, yz) | (xz2, yz2) [x(x2+y2), y(x2+y2)] |
| E2 | +1 +1 |
+ 2+ 2* | + 3*+ 3 | + *+ ![]() | +![]() + * | + 3+ 3* | + 2*+ 2 | - | (x2-y2, xy) | [xyz, z(x2-y2)] |
| E3 | +1 +1 |
+ 3+ 3* | + *+ ![]() | + 2+ 2* | + 2*+ 2 | +![]() + * | + 3*+ 3 | - | - | [y(3x2-y2), x(x2-3y2)] |
| Number of symmetry elements | h = 7 |
| Number of irreducible representations | n = 7 |
| Number of real irreducible representations | n = 4 |
| Abelian group | yes |
| Optical Isomerism (Chirality) | yes |
| Polar | yes |
| dipole (p) | A+E1 |
|---|---|
| quadrupole (d) | A+E1+E2 |
| octopole (f) | A+E1+E2+E3 |
| hexadecapole (g) | A+E1+E2+2E3 |
| 32-pole (h) | A+E1+2E2+2E3 |
| 64-pole (i) | A+2E1+2E2+2E3 |
| 128-pole (j) | 3A+2E1+2E2+2E3 |
| 256-pole(k) | 3A+3E1+2E2+2E3 |
| 512-pole (l) | 3A+3E1+3E2+2E3 |