data_[Y2Er4Al6Cu2Si4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Al  1.6100  1.2500  0.6750
  Cu  1.9000  1.3500  0.8200
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.1530]
_cell_length_b [11.9466]
_cell_length_c [6.8856]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [YEr2Al3CuSi2]
_chemical_formula_sum '[Y2 Er4 Al6 Cu2 Si4]'
_cell_volume [341.6258]
_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
[
  Y  Y0  2  0.0000  0.0000  0.4071  1
  Er  Er1  4  0.0000  0.2033  0.7973  1
  Al  Al2  4  0.5000  0.1191  0.1186  1
  Al  Al3  2  0.5000  0.0000  0.7626  1
  Si  Si4  4  0.5000  0.1679  0.5008  1
  Cu  Cu5  2  0.0000  0.0000  0.9970  1
]