The material described by ErCu2 crystallizes in the orthorhombic Imma space group. Er(1) is bonded in a 12-coordinate geometry to twelve equivalent Cu(1) atoms. Cu(1) is bonded in a 10-coordinate geometry to six equivalent Er(1) and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_ErCu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.254
_cell_length_b   5.344
_cell_length_c   5.344
_cell_angle_alpha   76.999
_cell_angle_beta   66.550
_cell_angle_gamma   66.550
_symmetry_Int_Tables_number   1
_cell_volume   101.925
_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  0.454  0.296  0.796  1.0
  Er  Er1  1  0.546  0.704  0.204  1.0
  Cu  Cu2  1  0.836  0.111  0.217  1.0
  Cu  Cu3  1  0.164  0.889  0.783  1.0
  Cu  Cu4  1  0.836  0.717  0.611  1.0
  Cu  Cu5  1  0.164  0.283  0.389  1.0
[/CIF]
.
The material described by ErCu2 crystallizes in the orthorhombic Imma space group. Er(1) is bonded in a 12-coordinate geometry to twelve equivalent Cu(1) atoms. Cu(1) is bonded in a 10-coordinate geometry to six equivalent Er(1) and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_ErCu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.254
_cell_length_b   5.344
_cell_length_c   5.344
_cell_angle_alpha   76.999
_cell_angle_beta   66.550
_cell_angle_gamma   66.550
_symmetry_Int_Tables_number   1
_cell_volume   101.925
_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  0.454  0.296  0.796  1.0
  Er  Er1  1  0.546  0.704  0.204  1.0
  Cu  Cu2  1  0.836  0.111  0.217  1.0
  Cu  Cu3  1  0.164  0.889  0.783  1.0
  Cu  Cu4  1  0.836  0.717  0.611  1.0
  Cu  Cu5  1  0.164  0.283  0.389  1.0
[/CIF]
.