The structure described by Ho5NiPb3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 7-coordinate geometry to two equivalent Ni(1) and five equivalent Pb(1) atoms. In the second Ho site, Ho(2) is bonded in a 6-coordinate geometry to six equivalent Pb(1) atoms. Ni(1) is bonded to six equivalent Ho(1) atoms to form face-sharing NiHo6 octahedra. Pb(1) is bonded in a 9-coordinate geometry to four equivalent Ho(2) and five equivalent Ho(1) atoms. is represented by the CIF file [CIF]
data_Ho5NiPb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.055
_cell_length_b   9.055
_cell_length_c   6.676
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   474.071
_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
  Ho  Ho0  1  0.000  0.763  0.750  1.0
  Ho  Ho1  1  0.333  0.667  0.500  1.0
  Ho  Ho2  1  0.763  0.763  0.250  1.0
  Ho  Ho3  1  0.763  0.000  0.750  1.0
  Ho  Ho4  1  0.237  0.000  0.250  1.0
  Ho  Ho5  1  0.667  0.333  0.500  1.0
  Ho  Ho6  1  0.237  0.237  0.750  1.0
  Ho  Ho7  1  0.333  0.667  0.000  1.0
  Ho  Ho8  1  0.000  0.237  0.250  1.0
  Ho  Ho9  1  0.667  0.333  0.000  1.0
  Ni  Ni10  1  0.000  0.000  1.000  1.0
  Ni  Ni11  1  0.000  0.000  0.500  1.0
  Pb  Pb12  1  0.400  0.400  0.250  1.0
  Pb  Pb13  1  0.600  0.600  0.750  1.0
  Pb  Pb14  1  0.600  0.000  0.250  1.0
  Pb  Pb15  1  0.400  0.000  0.750  1.0
  Pb  Pb16  1  0.000  0.600  0.250  1.0
  Pb  Pb17  1  0.000  0.400  0.750  1.0
[/CIF]
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The structure described by Ho5NiPb3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 7-coordinate geometry to two equivalent Ni(1) and five equivalent Pb(1) atoms. In the second Ho site, Ho(2) is bonded in a 6-coordinate geometry to six equivalent Pb(1) atoms. Ni(1) is bonded to six equivalent Ho(1) atoms to form face-sharing NiHo6 octahedra. Pb(1) is bonded in a 9-coordinate geometry to four equivalent Ho(2) and five equivalent Ho(1) atoms. is represented by the CIF file [CIF]
data_Ho5NiPb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.055
_cell_length_b   9.055
_cell_length_c   6.676
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   474.071
_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
  Ho  Ho0  1  0.000  0.763  0.750  1.0
  Ho  Ho1  1  0.333  0.667  0.500  1.0
  Ho  Ho2  1  0.763  0.763  0.250  1.0
  Ho  Ho3  1  0.763  0.000  0.750  1.0
  Ho  Ho4  1  0.237  0.000  0.250  1.0
  Ho  Ho5  1  0.667  0.333  0.500  1.0
  Ho  Ho6  1  0.237  0.237  0.750  1.0
  Ho  Ho7  1  0.333  0.667  0.000  1.0
  Ho  Ho8  1  0.000  0.237  0.250  1.0
  Ho  Ho9  1  0.667  0.333  0.000  1.0
  Ni  Ni10  1  0.000  0.000  1.000  1.0
  Ni  Ni11  1  0.000  0.000  0.500  1.0
  Pb  Pb12  1  0.400  0.400  0.250  1.0
  Pb  Pb13  1  0.600  0.600  0.750  1.0
  Pb  Pb14  1  0.600  0.000  0.250  1.0
  Pb  Pb15  1  0.400  0.000  0.750  1.0
  Pb  Pb16  1  0.000  0.600  0.250  1.0
  Pb  Pb17  1  0.000  0.400  0.750  1.0
[/CIF]
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