data_ZrSn2As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.57
_cell_length_b   3.57
_cell_length_c   7.54
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZrSn2As
_chemical_formula_sum   'Zr1 Sn2 As1'
_cell_volume   95.8
_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
  Zr  Zr3  1  0.78  0.78  0.15  1.0
  Sn  Sn1  1  0.78  0.78  0.34  1.0
  Sn  Sn2  1  0.0  0.0  0.12  1.0
  As  As0  1  0.0  0.0  0.24  1.0

data_ZrSn2As
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.04
_cell_length_b   5.04
_cell_length_c   7.54
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZrSn2As
_chemical_formula_sum   'Zr2 Sn4 As2'
_cell_volume   191.6
_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
  Zr  Zr0  2  0.28  0.5  0.15  1.0
  Sn  Sn1  2  0.0  0.0  0.12  1.0
  Sn  Sn2  2  0.28  0.5  0.34  1.0
  As  As3  2  0.0  0.0  0.24  1.0

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