data_Mn2SnAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.11
_cell_length_b   3.11
_cell_length_c   6.94
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn2SnAs
_chemical_formula_sum   'Mn2 Sn1 As1'
_cell_volume   66.99
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mn  Mn1  1  0.55  0.55  0.36  1.0
  Mn  Mn2  1  0.55  0.55  0.58  1.0
  Sn  Sn3  1  0.0  0.0  0.47  1.0
  As  As0  1  0.0  0.0  0.0  1.0

data_Mn2SnAs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.39
_cell_length_b   4.39
_cell_length_c   6.94
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Mn2SnAs
_chemical_formula_sum   'Mn4 Sn2 As2'
_cell_volume   133.99
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mn  Mn0  2  0.05  0.5  0.36  1.0
  Mn  Mn1  2  0.05  0.5  0.58  1.0
  Sn  Sn2  2  0.0  0.0  0.47  1.0
  As  As3  2  0.0  0.0  0.0  1.0

Mn Mn Sn As
Mn Mn Sn As 0 1 o o o 0 2 + + o 0 2 + o o 0 2 o + o 0 2 o o o 0 3 + + o 0 3 + o o 0 3 o + o 0 3 o o o 1 2 + + o 1 2 + o o 1 2 o + o 1 2 o o o 1 3 + + + 1 3 + o + 1 3 o + + 1 3 o o + 2 3 o o + 2 3 o o o 3 3 + o o 3 3 o + o 