data_[Er2Cr4B12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Cr  1.6600  1.4000  0.9400
  B  2.0400  0.8500  0.4100
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [3.0536]
_cell_length_b [6.4589]
_cell_length_c [8.2497]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Er(CrB3)2]
_chemical_formula_sum '[Er2 Cr4 B12]'
_cell_volume [162.7072]
_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
[
  Er  Er0  2  0.0000  0.5000  0.0000  1.0
  Cr  Cr1  4  0.0000  0.0000  0.1543  1.0
  B  B2  8  0.0000  0.2608  0.3043  1.0
  B  B3  4  0.0000  0.3562  0.5000  1.0
]