data_[Er3Be1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Be  1.5700  1.0500  0.5900
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [3.4034]
_cell_length_b [3.5839]
_cell_length_c [8.9069]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [Er3Be]
_chemical_formula_sum '[Er3 Be1]'
_cell_volume [108.6413]
_cell_formula_units_Z [1]
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  1  0.0000  0.5000  0.2549  1
  Er  Er1  1  0.5000  0.0000  0.5348  1
  Er  Er2  1  0.5000  0.5000  0.8690  1
  Be  Be3  1  0.0000  0.0000  0.0080  1
]