The crystal structure described by Ho3Ni2 crystallizes in the trigonal R-3 space group. There are three inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in an octahedral geometry to six equivalent Ni(1) atoms. In the second Ho site, Ho(2) is bonded in a 6-coordinate geometry to six equivalent Ni(1) atoms. In the third Ho site, Ho(3) is bonded in a 5-coordinate geometry to five equivalent Ni(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to one Ho(1), two equivalent Ho(2), five equivalent Ho(3), and one Ni(1) atom. is represented by the CIF card [CIF]
data_Ho3Ni2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.140
_cell_length_b   7.140
_cell_length_c   7.140
_cell_angle_alpha   72.821
_cell_angle_beta   72.821
_cell_angle_gamma   72.821
_symmetry_Int_Tables_number   1
_cell_volume   323.515
_cell_formula_units_Z   3
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  0.000  0.000  0.000  1.0
  Ho  Ho1  1  0.793  0.793  0.793  1.0
  Ho  Ho2  1  0.207  0.207  0.207  1.0
  Ho  Ho3  1  0.336  0.614  0.829  1.0
  Ho  Ho4  1  0.829  0.336  0.614  1.0
  Ho  Ho5  1  0.614  0.829  0.336  1.0
  Ho  Ho6  1  0.664  0.386  0.171  1.0
  Ho  Ho7  1  0.171  0.664  0.386  1.0
  Ho  Ho8  1  0.386  0.171  0.664  1.0
  Ni  Ni9  1  0.143  0.961  0.585  1.0
  Ni  Ni10  1  0.585  0.143  0.961  1.0
  Ni  Ni11  1  0.961  0.585  0.143  1.0
  Ni  Ni12  1  0.857  0.039  0.415  1.0
  Ni  Ni13  1  0.415  0.857  0.039  1.0
  Ni  Ni14  1  0.039  0.415  0.857  1.0
[/CIF]
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The crystal structure described by Ho3Ni2 crystallizes in the trigonal R-3 space group. There are three inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in an octahedral geometry to six equivalent Ni(1) atoms. In the second Ho site, Ho(2) is bonded in a 6-coordinate geometry to six equivalent Ni(1) atoms. In the third Ho site, Ho(3) is bonded in a 5-coordinate geometry to five equivalent Ni(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to one Ho(1), two equivalent Ho(2), five equivalent Ho(3), and one Ni(1) atom. is represented by the CIF card [CIF]
data_Ho3Ni2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.140
_cell_length_b   7.140
_cell_length_c   7.140
_cell_angle_alpha   72.821
_cell_angle_beta   72.821
_cell_angle_gamma   72.821
_symmetry_Int_Tables_number   1
_cell_volume   323.515
_cell_formula_units_Z   3
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  0.000  0.000  0.000  1.0
  Ho  Ho1  1  0.793  0.793  0.793  1.0
  Ho  Ho2  1  0.207  0.207  0.207  1.0
  Ho  Ho3  1  0.336  0.614  0.829  1.0
  Ho  Ho4  1  0.829  0.336  0.614  1.0
  Ho  Ho5  1  0.614  0.829  0.336  1.0
  Ho  Ho6  1  0.664  0.386  0.171  1.0
  Ho  Ho7  1  0.171  0.664  0.386  1.0
  Ho  Ho8  1  0.386  0.171  0.664  1.0
  Ni  Ni9  1  0.143  0.961  0.585  1.0
  Ni  Ni10  1  0.585  0.143  0.961  1.0
  Ni  Ni11  1  0.961  0.585  0.143  1.0
  Ni  Ni12  1  0.857  0.039  0.415  1.0
  Ni  Ni13  1  0.415  0.857  0.039  1.0
  Ni  Ni14  1  0.039  0.415  0.857  1.0
[/CIF]
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