Pmn21 (31) Space Group

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Pmn2₁ (31) Space Group

Table 1656. Pmn2₁ (31) space group.

Name in the International Tables for Crystallography	Pmn2₁	Lattice type	P
Patterson space group	47	Point group	mm2
Crystal system	Orthorhombic	Laue class	mmm
Asymm	0 ≤ x ≤ 1/2 and 0 ≤ y ≤ 1/2 and 0 ≤ z ≤ 1
Number of symmetry operators	4	Absence of reflections
Symmetry (atomic coordinates)	X, Y, Z; 1/2-X, -Y, 1/2+Z; 1/2+X, -Y, 1/2+Z; -X, Y, Z
Translation		Crystal symmetry	Is non-centrosymmetric because it has not -x,-y,-z in its symmetry.
Crystal examples