data_SrZnSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.46
_cell_length_b   6.46
_cell_length_c   6.46
_cell_angle_alpha   146.3
_cell_angle_beta   146.3
_cell_angle_gamma   48.41
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrZnSn
_chemical_formula_sum   'Sr1 Zn1 Sn1'
_cell_volume   82.71
_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
  Sr  Sr1  1  0.0  0.0  0.93  1.0
  Zn  Zn2  1  0.0  0.0  0.18  1.0
  Sn  Sn0  1  0.0  0.0  0.46  1.0

data_SrZnSn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.3
_cell_length_b   5.3
_cell_length_c   6.46
_cell_angle_alpha   90.0
_cell_angle_beta   114.2
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrZnSn
_chemical_formula_sum   'Sr2 Zn2 Sn2'
_cell_volume   165.42
_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
  Sr  Sr0  2  0.43  0.5  0.93  1.0
  Zn  Zn1  2  0.18  0.0  0.18  1.0
  Sn  Sn2  2  0.46  0.0  0.46  1.0

Sr Zn Sn
Sr Zn Sn 0 1 o o + 1 2 o o o 