data_K2NbPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.43
_cell_length_b   4.43
_cell_length_c   9.08
_cell_angle_alpha   102.04
_cell_angle_beta   102.04
_cell_angle_gamma   56.25
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2NbPt
_chemical_formula_sum   'K2 Nb1 Pt1'
_cell_volume   144.33
_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
  K  K0  1  0.12  0.0  0.79  1.0
  K  K1  1  0.37  0.0  0.91  1.0
  Nb  Nb2  1  0.74  0.0  0.44  1.0
  Pt  Pt3  1  0.28  0.0  0.1  1.0

data_K2NbPt
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.18
_cell_length_b   4.43
_cell_length_c   9.08
_cell_angle_alpha   102.04
_cell_angle_beta   90.0
_cell_angle_gamma   118.13
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2NbPt
_chemical_formula_sum   'K2 Nb1 Pt1'
_cell_volume   144.33
_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
  K  K0  1  0.0  0.63  0.09  1.0
  K  K1  1  0.0  0.88  0.21  1.0
  Nb  Nb2  1  0.0  0.26  0.56  1.0
  Pt  Pt3  1  0.0  0.72  0.9  1.0

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