The crystal structure described by Ho2FeGa8 crystallizes in the tetragonal P4/mmm space group. Ho(1) is bonded to four equivalent Ga(1), four equivalent Ga(2), and four equivalent Ga(3) atoms to form HoGa12 cuboctahedra that share corners with eight equivalent Ho(1)Ga12 cuboctahedra, edges with four equivalent Ga(2)Ho4Ga8 cuboctahedra, faces with four equivalent Ga(2)Ho4Ga8 cuboctahedra, and faces with five equivalent Ho(1)Ga12 cuboctahedra. Fe(1) is bonded in a body-centered cubic geometry to eight equivalent Ga(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a distorted square co-planar geometry to four equivalent Ho(1) and four equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded to four equivalent Ho(1), four equivalent Ga(1), and four equivalent Ga(3) atoms to form distorted GaHo4Ga8 cuboctahedra that share corners with eight equivalent Ga(2)Ho4Ga8 cuboctahedra, edges with four equivalent Ho(1)Ga12 cuboctahedra, faces with four equivalent Ho(1)Ga12 cuboctahedra, and faces with five equivalent Ga(2)Ho4Ga8 cuboctahedra. In the third Ga site, Ga(3) is bonded in a 11-coordinate geometry to two equivalent Ho(1), two equivalent Fe(1), two equivalent Ga(2), and five equivalent Ga(3) atoms. is represented by the CIF file [CIF]
data_Ho2Ga8Fe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.246
_cell_length_b   4.246
_cell_length_c   11.066
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   199.493
_cell_formula_units_Z   1
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  0.695  1.0
  Ho  Ho1  1  0.000  0.000  0.305  1.0
  Ga  Ga2  1  0.500  0.000  0.500  1.0
  Ga  Ga3  1  0.000  0.500  0.500  1.0
  Ga  Ga4  1  0.500  0.500  0.700  1.0
  Ga  Ga5  1  0.500  0.500  0.300  1.0
  Ga  Ga6  1  0.500  0.000  0.885  1.0
  Ga  Ga7  1  0.000  0.500  0.885  1.0
  Ga  Ga8  1  0.500  0.000  0.115  1.0
  Ga  Ga9  1  0.000  0.500  0.115  1.0
  Fe  Fe10  1  0.000  0.000  0.000  1.0
[/CIF]
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The crystal structure described by Ho2FeGa8 crystallizes in the tetragonal P4/mmm space group. Ho(1) is bonded to four equivalent Ga(1), four equivalent Ga(2), and four equivalent Ga(3) atoms to form HoGa12 cuboctahedra that share corners with eight equivalent Ho(1)Ga12 cuboctahedra, edges with four equivalent Ga(2)Ho4Ga8 cuboctahedra, faces with four equivalent Ga(2)Ho4Ga8 cuboctahedra, and faces with five equivalent Ho(1)Ga12 cuboctahedra. Fe(1) is bonded in a body-centered cubic geometry to eight equivalent Ga(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a distorted square co-planar geometry to four equivalent Ho(1) and four equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded to four equivalent Ho(1), four equivalent Ga(1), and four equivalent Ga(3) atoms to form distorted GaHo4Ga8 cuboctahedra that share corners with eight equivalent Ga(2)Ho4Ga8 cuboctahedra, edges with four equivalent Ho(1)Ga12 cuboctahedra, faces with four equivalent Ho(1)Ga12 cuboctahedra, and faces with five equivalent Ga(2)Ho4Ga8 cuboctahedra. In the third Ga site, Ga(3) is bonded in a 11-coordinate geometry to two equivalent Ho(1), two equivalent Fe(1), two equivalent Ga(2), and five equivalent Ga(3) atoms. is represented by the CIF file [CIF]
data_Ho2Ga8Fe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.246
_cell_length_b   4.246
_cell_length_c   11.066
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   199.493
_cell_formula_units_Z   1
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  0.695  1.0
  Ho  Ho1  1  0.000  0.000  0.305  1.0
  Ga  Ga2  1  0.500  0.000  0.500  1.0
  Ga  Ga3  1  0.000  0.500  0.500  1.0
  Ga  Ga4  1  0.500  0.500  0.700  1.0
  Ga  Ga5  1  0.500  0.500  0.300  1.0
  Ga  Ga6  1  0.500  0.000  0.885  1.0
  Ga  Ga7  1  0.000  0.500  0.885  1.0
  Ga  Ga8  1  0.500  0.000  0.115  1.0
  Ga  Ga9  1  0.000  0.500  0.115  1.0
  Fe  Fe10  1  0.000  0.000  0.000  1.0
[/CIF]
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