pb11 m Monoclinic/Rectangular
No. 12 pb11 Patterson symmetry p2/m11

symmetry group diagram

Origin on glide plane b

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

Symmetry operations

(1)  1
      (1 | 0, 0, 0)
(2)  b   0, yz
      (mx | 0, 1/2, 0)
   

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

Positions

Multiplicity, Wyckoff letter,
Site symmetry
Coordinates Reflection conditions

  General:
2 a 1
(1) xyz (2) -xy + 1/2z
0k: k = 2n

Symmetry of special projections

Along [001]   p1g1
a' = a   b' = bp   
Origin at 0, 0, z
Along [100]   [script p]111
a' = 1/2b   
Origin at x, 0, 0
Along [010]   [script p]1m1
a' = a   
Origin at 0, y, 0

Maximal non-isotypic subgroups


I [2] p1 (1) 1
IIa none
IIb none

Maximal isotypic subgroups of lowest index


IIc [2] pb11 (a' = 2a) (12)

Minimal non-isotypic supergroups


I [2] p2/b11 (16); [2] p21/b11 (17); [2] pma2 (24); [2] pba2 (25); [2] pb21m (29); [2] pb2b (30); [2] pb21a (33); [2] pb2n (34)
II [2] cm11 (13); [2] pm11 (b' = 1/2b) (11)








































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