data_[Sr8Ni4Ge8Ir4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ni  1.9100  1.3500  0.7400
  Ge  2.0100  1.2500  0.7700
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [5.7700]
_cell_length_b [17.4450]
_cell_length_c [5.9063]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Sr2NiGe2Ir]
_chemical_formula_sum '[Sr8 Ni4 Ge8 Ir4]'
_cell_volume [594.5152]
_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  8  0.2489  0.1540  0.5000  1.0
  Ni  Ni1  4  0.0000  0.5000  0.2500  1.0
  Ge  Ge2  8  0.2399  0.4233  0.5000  1.0
  Ir  Ir3  4  0.0000  0.0000  0.2500  1.0
]