data_YAlSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.63
_cell_length_b   4.63
_cell_length_c   4.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YAlSn2
_chemical_formula_sum   'Y1 Al1 Sn2'
_cell_volume   96.15
_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  Y3  1  0.32  0.32  0.0  1.0
  Al  Al0  1  0.0  0.0  0.0  1.0
  Sn  Sn1  1  0.0  0.32  0.24  1.0
  Sn  Sn2  1  0.32  0.0  0.24  1.0

data_YAlSn2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.55
_cell_length_b   6.55
_cell_length_c   4.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   YAlSn2
_chemical_formula_sum   'Y2 Al2 Sn4'
_cell_volume   192.31
_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  0.32  0.0  -0.0  1.0
  Al  Al1  2  0.0  0.0  0.0  1.0
  Sn  Sn2  4  0.16  0.16  0.24  1.0

Y Al Sn Sn