Wyckoff Positions of Space Groups

Wyckoff Positions of Group 49 (P c c m)

Multiplicity

Wyckoff
letter

Site
symmetry

Coordinates

8

r

1

(x, y, z)	( - x, - y, z)	( - x, y, - z + 1/2)	(x, - y, - z + 1/2)
( - x, - y, - z)	(x, y, - z)	(x, - y, z + 1/2)	( - x, y, z + 1/2)

4

q

..m

(x, y, 0)

( - x, - y, 0)

( - x, y, 1/2)

(x, - y, 1/2)

4

p

..2

(1/2, 0, z)

(1/2, 0, - z + 1/2)

(1/2, 0, - z)

(1/2, 0, z + 1/2)

4

o

..2

(0, 1/2, z)

(0, 1/2, - z + 1/2)

(0, 1/2, - z)

(0, 1/2, z + 1/2)

4

n

..2

(1/2, 1/2, z)

(1/2, 1/2, - z + 1/2)

(1/2, 1/2, - z)

(1/2, 1/2, z + 1/2)

4

m

..2

(0, 0, z)

(0, 0, - z + 1/2)

(0, 0, - z)

(0, 0, z + 1/2)

4

l

.2.

(1/2, y, 1/4)

(1/2, - y, 1/4)

(1/2, - y, 3/4)

(1/2, y, 3/4)

4

k

.2.

(0, y, 1/4)

(0, - y, 1/4)

(0, - y, 3/4)

(0, y, 3/4)

4

j

2..

(x, 1/2, 1/4)

( - x, 1/2, 1/4)

( - x, 1/2, 3/4)

(x, 1/2, 3/4)

4

i

2..

(x, 0, 1/4)

( - x, 0, 1/4)

( - x, 0, 3/4)

(x, 0, 3/4)

2

h

222

(1/2, 1/2, 1/4)

(1/2, 1/2, 3/4)

2

g

222

(0, 1/2, 1/4)

(0, 1/2, 3/4)

2

f

222

(1/2, 0, 1/4)

(1/2, 0, 3/4)

2

e

222

(0, 0, 1/4)

(0, 0, 3/4)

2

d

..2/m

(1/2, 0, 0)

(1/2, 0, 1/2)

2

c

..2/m

(0, 1/2, 0)

(0, 1/2, 1/2)

2

b

..2/m

(1/2, 1/2, 0)

(1/2, 1/2, 1/2)

2

a

..2/m

(0, 0, 0)

(0, 0, 1/2)

If you want to see the Wyckoff position in other setting, click here

[Main Menu]
[Table] [GENPOS] [WYCKPOS] [MAXSUB] [MINSUP] [WYCKSPLIT] [SUBGROUPGRAPH] [KVEC] [REPRES] [COREL]

For comments, please mail to cryst@wm.lc.ehu.es