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Dnh group - D4h


D4h

Symmetry elements for the group

Spectroscopy active component

E

2C4 (z)

C2

2C'2

2C''2

i

2S4

sh

2sv

2sd

Microwave

IR

Raman

Symmetry label

A1g

1

1

1

1

1

1

1

1

1

1

 

 

x2+y2, z2

A2g

1

1

1

-1

-1

1

1

1

-1

-1

Rz

 

 

B1g

1

-1

1

1

-1

1

-1

1

1

-1

 

 

x2-y2

B2g

1

-1

1

-1

1

1

-1

1

-1

1

 

 

xy

Eg

2

0

-2

0

0

2

0

-2

0

0

(Rx, Ry)

 

(xz, yz)

A1u

1

1

1

1

1

-1

-1

-1

-1

-1

 

 

 

A2u

1

1

1

-1

-1

-1

-1

-1

1

1

 

z

 

B1u

1

-1

1

1

-1

-1

1

-1

-1

1

 

 

 

B2u

1

-1

1

-1

1

-1

1

-1

1

-1

 

 

 

Eu

2

0

-2

0

0

-2

0

2

0

0

 

(x, y)

 

 

Cnh is the simplest point group that there is. An examples of this is:


Also contained in this group (Dnh group) is:   D2h  D3h D5h D6h  D7h  D8h