data_NaCuOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.64
_cell_length_b   4.8
_cell_length_c   4.75
_cell_angle_alpha   90.0
_cell_angle_beta   93.24
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCuOs2
_chemical_formula_sum   'Na1 Cu1 Os2'
_cell_volume   60.11
_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
  Na  Na1  1  0.0  0.0  0.0  1.0
  Cu  Cu0  1  0.18  0.0  0.37  1.0
  Os  Os2  1  0.57  0.4  0.55  1.0
  Os  Os3  1  0.8  0.4  0.2  1.0

data_NaCuOs2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.64
_cell_length_b   4.75
_cell_length_c   4.8
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   93.24
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCuOs2
_chemical_formula_sum   'Na1 Cu1 Os2'
_cell_volume   60.11
_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
  Na  Na0  1  0.0  0.0  0.0  1.0
  Cu  Cu1  1  0.82  0.63  0.0  1.0
  Os  Os2  1  0.2  0.8  0.6  1.0
  Os  Os3  1  0.43  0.45  0.6  1.0

Na Cu Os Os