| C∞v | E | 2C∞φ | ∞σv | 线性 / 转动linear, rotations | 二次quadratic |
|---|---|---|---|---|---|
| A1 | 1 | 1 | 1 | z | x²+y², z² |
| A2 | 1 | 1 | −1 | Rz | |
| E1 | 2 | 2cosφ | 0 | (x, y), (Rx, Ry) | (xz, yz) |
| E2 | 2 | 2cos2φ | 0 | (x²−y², xy) | |
| E3 | 2 | 2cos3φ | 0 |
| 阶 hOrder h | ∞ |
|---|---|
| 类数Classes | ∞ |
| 所属族Family | 线形 Linear |
| 代表分子Examples | HCl, HCN, CO, OCS |
在 3D 中查看并做对称操作Open in 3D and try the symmetry operationsHCN →
对称元素Symmetry elements
线形分子绕键轴旋转任意角度 φ 都不变；E1、E2、E3… 又分别记作 Π、Δ、Φ，A1、A2 记作 Σ⁺、Σ⁻。
Rotation by any angle φ about the molecular axis is a symmetry operation. E1, E2, E3… are also written Π, Δ, Φ, and A1, A2 as Σ⁺, Σ⁻.