data_ZnSiSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.49
_cell_length_b   4.04
_cell_length_c   6.47
_cell_angle_alpha   90.0
_cell_angle_beta   104.03
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnSiSn2
_chemical_formula_sum   'Zn1 Si1 Sn2'
_cell_volume   88.29
_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
  Zn  Zn3  1  0.78  0.02  0.12  1.0
  Si  Si0  1  0.0  0.0  0.66  1.0
  Sn  Sn1  1  0.73  0.02  0.01  1.0
  Sn  Sn2  1  0.54  0.0  0.89  1.0

data_ZnSiSn2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.49
_cell_length_b   4.04
_cell_length_c   6.47
_cell_angle_alpha   90.0
_cell_angle_beta   104.03
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnSiSn2
_chemical_formula_sum   'Zn1 Si1 Sn2'
_cell_volume   88.29
_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
  Zn  Zn0  1  0.78  0.02  0.12  1.0
  Si  Si1  1  0.0  0.0  0.66  1.0
  Sn  Sn2  1  0.54  0.0  0.89  1.0
  Sn  Sn3  1  0.73  0.02  0.01  1.0

Zn Si Sn Sn