data_Y2NbPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.45
_cell_length_b   3.45
_cell_length_c   7.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y2NbPt
_chemical_formula_sum   'Y2 Nb1 Pt1'
_cell_volume   91.4
_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  0.73  0.73  0.58  1.0
  Y  Y3  1  0.73  0.73  0.09  1.0
  Nb  Nb0  1  0.0  0.0  0.0  1.0
  Pt  Pt1  1  0.0  0.0  0.83  1.0

data_Y2NbPt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.88
_cell_length_b   4.88
_cell_length_c   7.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Y2NbPt
_chemical_formula_sum   'Y4 Nb2 Pt2'
_cell_volume   182.8
_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  0.23  0.5  0.09  1.0
  Y  Y1  2  0.23  0.5  0.58  1.0
  Nb  Nb2  2  0.0  0.0  0.0  1.0
  Pt  Pt3  2  0.0  0.0  0.83  1.0

Y Y Nb Pt
Y Y Nb Pt 0 3 + + o 1 2 + + o 2 3 o o - 