The crystal structure described by HoPtAs crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to six equivalent Pt(1) and six equivalent As(1) atoms to form a mixture of face and edge-sharing HoAs6Pt6 cuboctahedra. In the second Ho site, Ho(2) is bonded to six equivalent Pt(1) and six equivalent As(1) atoms to form a mixture of distorted face and edge-sharing HoAs6Pt6 cuboctahedra. Pt(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), three equivalent Ho(2), and three equivalent As(1) atoms. As(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), three equivalent Ho(2), and three equivalent Pt(1) atoms. is represented by the CIF card [CIF]
data_HoAsPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.252
_cell_length_b   4.252
_cell_length_c   15.242
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   238.669
_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  0.000  0.000  0.500  1.0
  Ho  Ho1  1  0.000  0.000  0.000  1.0
  Ho  Ho2  1  0.000  0.000  0.250  1.0
  Ho  Ho3  1  0.000  0.000  0.750  1.0
  As  As4  1  0.333  0.667  0.884  1.0
  As  As5  1  0.667  0.333  0.116  1.0
  As  As6  1  0.667  0.333  0.384  1.0
  As  As7  1  0.333  0.667  0.616  1.0
  Pt  Pt8  1  0.333  0.667  0.364  1.0
  Pt  Pt9  1  0.667  0.333  0.636  1.0
  Pt  Pt10  1  0.667  0.333  0.864  1.0
  Pt  Pt11  1  0.333  0.667  0.136  1.0
[/CIF]
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The crystal structure described by HoPtAs crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to six equivalent Pt(1) and six equivalent As(1) atoms to form a mixture of face and edge-sharing HoAs6Pt6 cuboctahedra. In the second Ho site, Ho(2) is bonded to six equivalent Pt(1) and six equivalent As(1) atoms to form a mixture of distorted face and edge-sharing HoAs6Pt6 cuboctahedra. Pt(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), three equivalent Ho(2), and three equivalent As(1) atoms. As(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), three equivalent Ho(2), and three equivalent Pt(1) atoms. is represented by the CIF card [CIF]
data_HoAsPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.252
_cell_length_b   4.252
_cell_length_c   15.242
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   238.669
_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  0.000  0.000  0.500  1.0
  Ho  Ho1  1  0.000  0.000  0.000  1.0
  Ho  Ho2  1  0.000  0.000  0.250  1.0
  Ho  Ho3  1  0.000  0.000  0.750  1.0
  As  As4  1  0.333  0.667  0.884  1.0
  As  As5  1  0.667  0.333  0.116  1.0
  As  As6  1  0.667  0.333  0.384  1.0
  As  As7  1  0.333  0.667  0.616  1.0
  Pt  Pt8  1  0.333  0.667  0.364  1.0
  Pt  Pt9  1  0.667  0.333  0.636  1.0
  Pt  Pt10  1  0.667  0.333  0.864  1.0
  Pt  Pt11  1  0.333  0.667  0.136  1.0
[/CIF]
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