Example Molecule: Porphyrazin

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• Jon Goss
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Porphyrazin has D_4h symmetry, which is a tetragonal point-group which contains sixteen operations. Below are sketches of the nature of each of these operations. The principal axis is defined as that with the highest degree of rotational symmetry, which can clearly be identified in this case as bing a four-fold rotationally symmetric axis.

Click on the images for a better view.

E	C4	C4	C2
C2'	C2'	C2''	C2''
I	S4	S4	σh
σv	σv	σd	σd