data_BeSn2Te
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.26
_cell_length_b   6.26
_cell_length_c   6.26
_cell_angle_alpha   140.37
_cell_angle_beta   140.37
_cell_angle_gamma   57.29
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeSn2Te
_chemical_formula_sum   'Be1 Sn2 Te1'
_cell_volume   98.84
_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
  Be  Be0  1  0.0  0.0  0.0  1.0
  Sn  Sn1  1  0.12  0.0  0.75  1.0
  Sn  Sn2  1  0.0  0.12  0.75  1.0
  Te  Te3  1  0.0  0.0  0.49  1.0

data_BeSn2Te
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.0
_cell_length_b   6.0
_cell_length_c   6.26
_cell_angle_alpha   90.0
_cell_angle_beta   118.64
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BeSn2Te
_chemical_formula_sum   'Be2 Sn4 Te2'
_cell_volume   197.68
_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
  Be  Be0  2  0.0  0.0  0.0  1.0
  Sn  Sn1  4  0.19  0.44  0.62  1.0
  Te  Te2  2  0.49  0.0  0.49  1.0

Be Sn Sn Te
Be Sn Sn Te 0 2 o o - 0 1 o o - 1 2 o o o 1 3 o o o 2 3 o o o 