The material structure described by ErCuGe crystallizes in the trigonal P-3m1 space group. Er(1) is bonded to six equivalent Cu(1) and six equivalent Ge(1) atoms to form a mixture of distorted edge and face-sharing ErCu6Ge6 cuboctahedra. Cu(1) is bonded in a 10-coordinate geometry to six equivalent Er(1), three equivalent Cu(1), and one Ge(1) atom. Ge(1) is bonded in a 10-coordinate geometry to six equivalent Er(1), one Cu(1), and three equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErCuGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.328
_cell_length_b   4.328
_cell_length_c   7.190
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   116.654
_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  0.000  0.000  0.237  1.0
  Er  Er1  1  0.000  0.000  0.763  1.0
  Cu  Cu2  1  0.333  0.667  0.023  1.0
  Cu  Cu3  1  0.667  0.333  0.977  1.0
  Ge  Ge4  1  0.667  0.333  0.534  1.0
  Ge  Ge5  1  0.333  0.667  0.466  1.0
[/CIF]
.
The material structure described by ErCuGe crystallizes in the trigonal P-3m1 space group. Er(1) is bonded to six equivalent Cu(1) and six equivalent Ge(1) atoms to form a mixture of distorted edge and face-sharing ErCu6Ge6 cuboctahedra. Cu(1) is bonded in a 10-coordinate geometry to six equivalent Er(1), three equivalent Cu(1), and one Ge(1) atom. Ge(1) is bonded in a 10-coordinate geometry to six equivalent Er(1), one Cu(1), and three equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErCuGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.328
_cell_length_b   4.328
_cell_length_c   7.190
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   116.654
_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  0.000  0.000  0.237  1.0
  Er  Er1  1  0.000  0.000  0.763  1.0
  Cu  Cu2  1  0.333  0.667  0.023  1.0
  Cu  Cu3  1  0.667  0.333  0.977  1.0
  Ge  Ge4  1  0.667  0.333  0.534  1.0
  Ge  Ge5  1  0.333  0.667  0.466  1.0
[/CIF]
.