data_[Mg6H2Ir6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  H  2.2000  0.2500  0.0000
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.7748]
_cell_length_b [4.4497]
_cell_length_c [5.4614]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.6743]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Mg3HIr3]
_chemical_formula_sum '[Mg6 H2 Ir6]'
_cell_volume [188.9277]
_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
[
  Mg  Mg0  4  0.1631  0.5000  0.3322  1
  Mg  Mg1  2  0.0000  0.0000  0.0000  1
  Ir  Ir2  4  0.1808  0.5000  0.8206  1
  Ir  Ir3  2  0.0000  0.0000  0.5000  1
  H  H4  2  0.0000  0.5000  0.0000  1
]