The crystal structure described by ErAu4 crystallizes in the tetragonal I4/m space group. Er(1) is bonded to twelve equivalent Au(1) atoms to form a mixture of face and edge-sharing ErAu12 cuboctahedra. Au(1) is bonded to three equivalent Er(1) atoms to form a mixture of distorted edge and corner-sharing AuEr3 cuboctahedra. is represented by the CIF file [CIF]
data_ErAu4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.164
_cell_length_b   5.188
_cell_length_c   5.188
_cell_angle_alpha   80.731
_cell_angle_beta   66.339
_cell_angle_gamma   66.339
_symmetry_Int_Tables_number   1
_cell_volume   94.019
_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  0.000  0.000  0.000  1.0
  Au  Au1  1  0.600  0.599  0.201  1.0
  Au  Au2  1  0.400  0.401  0.799  1.0
  Au  Au3  1  0.199  0.201  0.401  1.0
  Au  Au4  1  0.801  0.799  0.599  1.0
[/CIF]
.
The crystal structure described by ErAu4 crystallizes in the tetragonal I4/m space group. Er(1) is bonded to twelve equivalent Au(1) atoms to form a mixture of face and edge-sharing ErAu12 cuboctahedra. Au(1) is bonded to three equivalent Er(1) atoms to form a mixture of distorted edge and corner-sharing AuEr3 cuboctahedra. is represented by the CIF file [CIF]
data_ErAu4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.164
_cell_length_b   5.188
_cell_length_c   5.188
_cell_angle_alpha   80.731
_cell_angle_beta   66.339
_cell_angle_gamma   66.339
_symmetry_Int_Tables_number   1
_cell_volume   94.019
_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  0.000  0.000  0.000  1.0
  Au  Au1  1  0.600  0.599  0.201  1.0
  Au  Au2  1  0.400  0.401  0.799  1.0
  Au  Au3  1  0.199  0.201  0.401  1.0
  Au  Au4  1  0.801  0.799  0.599  1.0
[/CIF]
.