Origin on glide plane b

Asymmetric unit

0 ≤ x ≤ 1/2; 0 ≤ y ≤ 1

(1)  1

(2)  b   0, y, z

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) x, y, z (2) -x, y + 1/2, z	0k: k = 2n

Symmetry of special projections

Along [001]   p1g1 a' = a   b' = bp    Origin at 0, 0, z

Along [100]   111 a' = 1/2b    Origin at x, 0, 0

Along [010]   1m1 a' = a    Origin at 0, y, 0

Maximal non-isotypic subgroups

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I

[2] p1 (1)

1

IIa

none

IIb

none

Maximal isotypic subgroups of lowest index

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IIc	[2] pb11 (a' = 2a) (12)

Minimal non-isotypic supergroups

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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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