Origin on m1n

Asymmetric unit

0 ≤ x ≤ 1/2; 0 ≤ y ≤ 1; 0 ≤ z

(1)  1

(2)  2(0, 1/2, 0)   1/4, y, 0

(3)  n(1/2, 1/2, 0)   x, y, 0

(4)  m   0, y, z

Generators selected (1); t(1, 0, 0); t(0, 1, 0); (2); (3)

Positions

Multiplicity, Wyckoff letter, Site symmetry	Coordinates	Reflection conditions
		General:
4 b 1	(1) x, y, z (2) -x + 1/2, y + 1/2, -z (3) x + 1/2, y + 1/2, -z (4) -x, y, z	hk: h + k = 2n h0: h = 2n 0k: k = 2n

		Special: no extra conditions
2 a  m . .	0, y, z 1/2, y + 1/2, -z

Symmetry of special projections

Along [001]   c1m1 a' = a   b' = b    Origin at 0, 0, z

Along [100]   11g a' = b    Origin at x, 0, 0

Along [010]   2mg a' = a    Origin at 1/4, y, 0

Maximal non-isotypic subgroups

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I	[2] pm11 (11)	1; 4
	[2] p1211 (p2111, 9)	1; 2
	[2] p11n (p11a, 5)	1; 3

IIa

none

IIb

none

Maximal isotypic subgroups of lowest index

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IIc	[3] pm21n (a' = 3a) (32); [3] pm21n (b' = 3b) (32)

Minimal non-isotypic supergroups

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I	[2] pman (42); [2] pmmn (46)

II	[2] cm2m (35); [2] pm21b (a' = 1/2a) (28); [2] pm2a (b' = 1/2b) (31)

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