The material structure described by Ho2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. In the second Ho site, Ho(2) is bonded to four equivalent Au(1) atoms to form a mixture of edge and corner-sharing HoAu4 tetrahedra. Au(1) is bonded in a 7-coordinate geometry to three equivalent Ho(1) and four equivalent Ho(2) atoms. is represented by the CIF file [CIF]
data_Ho2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.921
_cell_length_b   7.051
_cell_length_c   8.823
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   306.170
_cell_formula_units_Z   4
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
  Ho  Ho0  1  0.250  0.988  0.675  1.0
  Ho  Ho1  1  0.750  0.012  0.325  1.0
  Ho  Ho2  1  0.250  0.488  0.825  1.0
  Ho  Ho3  1  0.750  0.512  0.175  1.0
  Ho  Ho4  1  0.750  0.148  0.917  1.0
  Ho  Ho5  1  0.250  0.852  0.083  1.0
  Ho  Ho6  1  0.750  0.648  0.583  1.0
  Ho  Ho7  1  0.250  0.352  0.417  1.0
  Au  Au8  1  0.250  0.758  0.404  1.0
  Au  Au9  1  0.750  0.242  0.596  1.0
  Au  Au10  1  0.250  0.258  0.096  1.0
  Au  Au11  1  0.750  0.742  0.904  1.0
[/CIF]
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The material structure described by Ho2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. In the second Ho site, Ho(2) is bonded to four equivalent Au(1) atoms to form a mixture of edge and corner-sharing HoAu4 tetrahedra. Au(1) is bonded in a 7-coordinate geometry to three equivalent Ho(1) and four equivalent Ho(2) atoms. is represented by the CIF file [CIF]
data_Ho2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.921
_cell_length_b   7.051
_cell_length_c   8.823
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   306.170
_cell_formula_units_Z   4
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
  Ho  Ho0  1  0.250  0.988  0.675  1.0
  Ho  Ho1  1  0.750  0.012  0.325  1.0
  Ho  Ho2  1  0.250  0.488  0.825  1.0
  Ho  Ho3  1  0.750  0.512  0.175  1.0
  Ho  Ho4  1  0.750  0.148  0.917  1.0
  Ho  Ho5  1  0.250  0.852  0.083  1.0
  Ho  Ho6  1  0.750  0.648  0.583  1.0
  Ho  Ho7  1  0.250  0.352  0.417  1.0
  Au  Au8  1  0.250  0.758  0.404  1.0
  Au  Au9  1  0.750  0.242  0.596  1.0
  Au  Au10  1  0.250  0.258  0.096  1.0
  Au  Au11  1  0.750  0.742  0.904  1.0
[/CIF]
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