Origin on 2

Asymmetric unit

0 ≤ x ≤ 1/2; 0 ≤ y ≤ 1

(1)  1

(2)  2   0, 0, z

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

Positions

Multiplicity, Wyckoff letter, Site symmetry	Coordinates	Reflection conditions
		General:
2 e 1	(1) x, y, z (2) -x, -y, z	no conditions

		Special: no extra conditions
1 d  2	1/2, 1/2, z
1 c  2	1/2, 0, z
1 b  2	0, 1/2, z
1 a  2	0, 0, z

Symmetry of special projections

Along [001]   p2 a' = a   b' = b    Origin at 0, 0, z

Along [100]   1m1 a' = bp    Origin at x, 0, 0

Along [010]   1m1 a' = ap    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] p112 (a' = 2a or b' = 2b or a' = a + b, b' = -a + b) (3)

Minimal non-isotypic supergroups

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I	[2] p112/m (6); [2] p112/a (7); [2] p222 (19); [2] p2122 (20); [2] p21212 (21); [2] c222 (22); [2] pmm2 (23); [2] pma2 (24); [2] pba2 (25); [2] cmm2 (26); [2] p4 (49); [2] p-4 (50); [3] p6 (73)

II

none

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