data_SiNiPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.63
_cell_length_b   4.63
_cell_length_c   4.63
_cell_angle_alpha   135.05
_cell_angle_beta   126.1
_cell_angle_gamma   72.73
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiNiPt2
_chemical_formula_sum   'Si1 Ni1 Pt2'
_cell_volume   55.23
_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
  Si  Si3  1  0.0  0.0  0.0  1.0
  Ni  Ni0  1  0.0  0.0  0.72  1.0
  Pt  Pt1  1  0.0  0.1  0.08  1.0
  Pt  Pt2  1  0.77  0.0  0.65  1.0

data_SiNiPt2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.54
_cell_length_b   4.19
_cell_length_c   4.63
_cell_angle_alpha   116.95
_cell_angle_beta   112.47
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiNiPt2
_chemical_formula_sum   'Si1 Ni1 Pt2'
_cell_volume   55.23
_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
  Si  Si0  1  0.0  0.0  0.0  1.0
  Ni  Ni1  1  0.28  0.28  0.28  1.0
  Pt  Pt2  1  0.12  0.35  0.12  1.0
  Pt  Pt3  1  0.92  0.02  0.02  1.0

Si Ni Pt Pt