data_[Rb3Cu1Os1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Cu  1.9000  1.3500  0.8200
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [Pm-3m]
_cell_length_a [6.4158]
_cell_length_b [6.4158]
_cell_length_c [6.4158]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [221]
_chemical_formula_structural [Rb3CuOs]
_chemical_formula_sum '[Rb3 Cu1 Os1]'
_cell_volume [264.0890]
_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
[
  Rb  Rb0  3  0.0000  0.0000  0.5000  1
  Cu  Cu1  1  0.5000  0.5000  0.5000  1
  Os  Os2  1  0.0000  0.0000  0.0000  1
]