p2mg2mmRectangularinfo
No. 7p2mgPatterson symmetry p2mm

symmetry group diagram

Origin at 2 1 g

Asymmetric unit 0 ≤ x ≤ 1/4; 0 ≤ y ≤ 1

Symmetry operations

(1)  1   (2)  2   0, 0(3)  m   1/4y(4)  a   x, 0

Generators selected (1); t(1, 0); t(0, 1); (2); (3)

Positions

Multiplicity, Wyckoff letter,
Site symmetry
CoordinatesReflection conditions

 General:
4d1
(1) xy(2) -x-y(3) -x + 1/2y(4) x + 1/2-y
h0: h = 2n
  Special: as above, plus
2c . m . 
1/4y3/4-y
no extra conditions
2b 2 . . 
0, 1/21/21/2
hk: h = 2n
2a 2 . . 
0, 01/2, 0
hk: h = 2n








































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