data_[Mg2As1Os1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  As  2.1800  1.1500  0.6600
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.0968]
_cell_length_b [3.0968]
_cell_length_c [7.7597]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [Mg2AsOs]
_chemical_formula_sum '[Mg2 As1 Os1]'
_cell_volume [74.4154]
_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
[
  Mg  Mg0  1  0.0000  0.0000  0.9679  1
  Mg  Mg1  1  0.5000  0.5000  0.2974  1
  As  As2  1  0.5000  0.5000  0.6989  1
  Os  Os3  1  0.0000  0.0000  0.5358  1
]