The crystal structure described by ErAuGe crystallizes in the hexagonal P6_3mc space group. Er(1) is bonded in a 8-coordinate geometry to six equivalent Au(1) and five equivalent Ge(1) atoms. Au(1) is bonded in a 11-coordinate geometry to six equivalent Er(1), two equivalent Au(1), and three equivalent Ge(1) atoms. Ge(1) is bonded to five equivalent Er(1) and three equivalent Au(1) atoms to form a mixture of corner and edge-sharing GeEr5Au3 hexagonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErGeAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.956
_cell_length_b   4.956
_cell_length_c   5.997
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   127.551
_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  1  0.333  0.667  0.972  1.0
  Er  Er1  1  0.667  0.333  0.472  1.0
  Ge  Ge2  1  0.667  0.333  0.957  1.0
  Ge  Ge3  1  0.333  0.667  0.457  1.0
  Au  Au4  1  0.000  0.000  0.321  1.0
  Au  Au5  1  0.000  0.000  0.821  1.0
[/CIF]
.
The crystal structure described by ErAuGe crystallizes in the hexagonal P6_3mc space group. Er(1) is bonded in a 8-coordinate geometry to six equivalent Au(1) and five equivalent Ge(1) atoms. Au(1) is bonded in a 11-coordinate geometry to six equivalent Er(1), two equivalent Au(1), and three equivalent Ge(1) atoms. Ge(1) is bonded to five equivalent Er(1) and three equivalent Au(1) atoms to form a mixture of corner and edge-sharing GeEr5Au3 hexagonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErGeAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.956
_cell_length_b   4.956
_cell_length_c   5.997
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   127.551
_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  1  0.333  0.667  0.972  1.0
  Er  Er1  1  0.667  0.333  0.472  1.0
  Ge  Ge2  1  0.667  0.333  0.957  1.0
  Ge  Ge3  1  0.333  0.667  0.457  1.0
  Au  Au4  1  0.000  0.000  0.321  1.0
  Au  Au5  1  0.000  0.000  0.821  1.0
[/CIF]
.