D_3h

E

2C₃

3C₂

σ_h

2S₃

3σ_v

Ⅲ

A₁′

1

1

1

1

1

1

x²+y², z²

A₂′

1

1

-1

1

1

-1

R_z

E′

2

-1

0

2

-1

0

(x,y),(x²-y²,xy)

A₁″

1

1

1

-1

-1

-1

A₂″

1

1

-1

-1

-1

1

z

E″

2

-1

0

-2

1

0

(R_x,R_y) (xz,yz)