C2 点群特征标表 C2 character table

C₂	E	C₂	线性 / 转动linear, rotations	二次quadratic
A	1	1	z, Rz	x², y², z², xy
B	1	−1	x, y, Rx, Ry	yz, xz

阶 hOrder h	2
类数Classes	2
所属族Family	Cn
代表分子Examples	H₂O₂, 反式扭曲联苯H₂O₂, twisted biphenyl

在 3D 中查看并做对称操作Open in 3D and try the symmetry operationsH₂O₂ →

约化可约表示Reduce a representation

输入可约表示在各类上的特征标，按约化公式 \(n_i = \frac{1}{h}\sum_R g_R\,\chi(R)\,\chi_i(R)^{*}\) 求出各不可约表示出现的次数。

Enter the characters of a reducible representation; the reduction formula gives how many times each irreducible representation occurs.

EC₂