data_[Sr4Mg4Bi4H8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Mg  1.3100  1.5000  0.8600
  Bi  2.0200  1.6000  1.0350
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.7163]
_cell_length_b [11.9708]
_cell_length_c [6.8488]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [SrMgBiH2]
_chemical_formula_sum '[Sr4 Mg4 Bi4 H8]'
_cell_volume [386.6670]
_cell_formula_units_Z [4]
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
[
  Sr  Sr0  4  0.0000  0.2773  0.2500  1
  Mg  Mg1  4  0.0000  0.0000  0.0000  1
  Bi  Bi2  4  0.0000  0.4411  0.7500  1
  H  H3  8  0.0000  0.1638  0.5554  1
]