data_[Rb2Ca4Os4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ca  1.0000  1.8000  1.1400
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [9.0337]
_cell_length_b [9.0337]
_cell_length_c [3.1544]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [Rb(CaOs)2]
_chemical_formula_sum '[Rb2 Ca4 Os4]'
_cell_volume [257.4259]
_cell_formula_units_Z [2]
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  2  0.0000  0.0000  0.0000  1
  Ca  Ca1  4  0.1826  0.6826  0.5000  1
  Os  Os2  4  0.0919  0.4081  0.0000  1
]