Pm Cs1 m Monoclinic info
No. 6 P1m1 Patterson symmetry P12/m1
UNIQUE AXIS b

symmetry group diagram

Origin on mirror plane m

Asymmetric unit 0 ≤ x ≤ 1; 0 ≤ y ≤ 1/2; 0 ≤ z ≤ 1

Symmetry operations

(1)  1   (2)  m   x, 0, z  

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

Positions

Multiplicity, Wyckoff letter,
Site symmetry
Coordinates Reflection conditions
 General:
2 c 1
(1) xyz(2) x-yz
no conditions
    Special: as above, plus
1 b  m 
x1/2z
no extra conditions
1 a  m 
x, 0, z
no extra conditions

Symmetry of special projections

Along [001]   p11m
a' = ap   b' = b   
Origin at 0, 0, z
Along [100]   p1m1
a' = b   b' = cp   
Origin at x, 0, 0
Along [010]   p1
a' = c   b' = a   
Origin at 0, y, 0





Pm Cs1 m Monoclinic info
No. 6 P11m Patterson symmetry P112/m
UNIQUE AXIS c

symmetry group diagram

Origin on mirror plane m

Asymmetric unit 0 ≤ x ≤ 1; 0 ≤ y ≤ 1; 0 ≤ z ≤ 1/2

Symmetry operations

(1)  1   (2)  m   xy, 0

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

Positions

Multiplicity, Wyckoff letter,
Site symmetry
Coordinates Reflection conditions
 General:
2 c 1
(1) xyz(2) xy-z
no conditions
    Special: as above, plus
1 b  m 
xy1/2
no extra conditions
1 a  m 
xy, 0
no extra conditions

Symmetry of special projections

Along [001]   p1
a' = a   b' = b   
Origin at 0, 0, z
Along [100]   p11m
a' = bp   b' = c   
Origin at x, 0, 0
Along [010]   p1m1
a' = c   b' = ap   
Origin at 0, y, 0








































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