data_[Ca2Er2Ir2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Er  1.2400  1.7500  1.0300
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.2274]
_cell_length_b [4.4642]
_cell_length_c [7.2498]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.9228]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [CaErIr]
_chemical_formula_sum '[Ca2 Er2 Ir2]'
_cell_volume [162.6920]
_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
[
  Ca  Ca0  2  0.2380  0.7500  0.4357  1.0
  Er  Er1  2  0.2361  0.7500  0.9550  1.0
  Ir  Ir2  2  0.3165  0.2500  0.2016  1.0
]