data_[La1Nd1Sm1Er1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Nd  1.1400  1.8500  1.2765
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [P3m1]
_cell_length_a [3.6379]
_cell_length_b [3.6379]
_cell_length_c [11.8698]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [156]
_chemical_formula_structural [LaNdSmEr]
_chemical_formula_sum '[La1 Nd1 Sm1 Er1]'
_cell_volume [136.0430]
_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
[
  La  La0  1  0.0000  0.0000  0.5707  1.0
  Nd  Nd1  1  0.6667  0.3333  0.8303  1.0
  Sm  Sm2  1  0.3333  0.6667  0.0800  1.0
  Er  Er3  1  0.6667  0.3333  0.3196  1.0
]