data_SrSn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.27
_cell_length_b   9.27
_cell_length_c   9.27
_cell_angle_alpha   25.62
_cell_angle_beta   25.62
_cell_angle_gamma   25.62
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSn3
_chemical_formula_sum   'Sr1 Sn3'
_cell_volume   131.23
_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  Sr3  1  0.0  0.0  0.0  1.0
  Sn  Sn0  1  0.0  0.0  0.41  1.0
  Sn  Sn1  1  0.0  0.0  0.45  1.0
  Sn  Sn2  1  0.0  0.0  0.48  1.0

data_SrSn3
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.12
_cell_length_b   4.11
_cell_length_c   9.27
_cell_angle_alpha   90.0
_cell_angle_beta   104.83
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrSn3
_chemical_formula_sum   'Sr2 Sn6'
_cell_volume   262.45
_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  0.0  0.0  0.0  1.0
  Sn  Sn1  2  0.0  0.0  0.52  1.0
  Sn  Sn2  2  0.0  0.0  0.55  1.0
  Sn  Sn3  2  0.0  0.0  0.59  1.0

Sr Sn Sn Sn