data_YSiSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.03
_cell_length_b   5.84
_cell_length_c   3.64
_cell_angle_alpha   75.08
_cell_angle_beta   69.26
_cell_angle_gamma   35.66
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YSiSn
_chemical_formula_sum   'Y1 Si1 Sn1'
_cell_volume   69.76
_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
  Y  Y2  1  0.34  0.79  0.69  1.0
  Si  Si0  1  0.34  0.79  0.1  1.0
  Sn  Sn1  1  0.34  0.79  0.91  1.0

data_YSiSn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.68
_cell_length_b   10.7
_cell_length_c   3.64
_cell_angle_alpha   90.0
_cell_angle_beta   129.99
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   YSiSn
_chemical_formula_sum   'Y2 Si2 Sn2'
_cell_volume   139.53
_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
  Y  Y0  2  0.34  0.0  0.03  1.0
  Si  Si1  2  0.34  0.0  0.44  1.0
  Sn  Sn2  2  0.34  0.0  0.25  1.0

Y Si Sn
Y Si Sn 0 2 o o o 1 2 o o - 