The material structure described by Ho5(GeSb)2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to three equivalent Ge(1) and three equivalent Sb(1) atoms to form distorted HoGe3Sb3 pentagonal pyramids that share corners with three equivalent Ho(2)Ge4Sb2 octahedra, corners with ten equivalent Ho(1)Ge3Sb3 pentagonal pyramids, edges with seven equivalent Ho(1)Ge3Sb3 pentagonal pyramids, faces with two equivalent Ho(2)Ge4Sb2 octahedra, and faces with two equivalent Ho(1)Ge3Sb3 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 35-42°. In the second Ho site, Ho(2) is bonded to four equivalent Ge(1) and two equivalent Sb(1) atoms to form HoGe4Sb2 octahedra that share corners with four equivalent Ho(2)Ge4Sb2 octahedra, corners with twelve equivalent Ho(1)Ge3Sb3 pentagonal pyramids, and faces with eight equivalent Ho(1)Ge3Sb3 pentagonal pyramids. The corner-sharing octahedral tilt angles are 47°. Ge(1) is bonded in a 8-coordinate geometry to two equivalent Ho(2) and six equivalent Ho(1) atoms. Sb(1) is bonded to one Ho(2) and six equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing SbHo7 pentagonal bipyramids. is represented by the CIF file [CIF]
data_Ho5(GeSb)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.465
_cell_length_b   8.465
_cell_length_c   7.898
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   124.558
_symmetry_Int_Tables_number   1
_cell_volume   466.072
_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  0.035  0.287  0.339  1.0
  Ho  Ho1  1  0.965  0.713  0.661  1.0
  Ho  Ho2  1  0.465  0.213  0.839  1.0
  Ho  Ho3  1  0.787  0.535  0.161  1.0
  Ho  Ho4  1  0.535  0.787  0.161  1.0
  Ho  Ho5  1  0.213  0.465  0.839  1.0
  Ho  Ho6  1  0.713  0.965  0.661  1.0
  Ho  Ho7  1  0.287  0.035  0.339  1.0
  Ho  Ho8  1  0.000  0.000  0.000  1.0
  Ho  Ho9  1  0.500  0.500  0.500  1.0
  Ge  Ge10  1  0.357  0.357  0.142  1.0
  Ge  Ge11  1  0.643  0.643  0.858  1.0
  Ge  Ge12  1  0.143  0.143  0.642  1.0
  Ge  Ge13  1  0.857  0.857  0.358  1.0
  Sb  Sb14  1  0.796  0.204  0.000  1.0
  Sb  Sb15  1  0.204  0.796  0.000  1.0
  Sb  Sb16  1  0.704  0.296  0.500  1.0
  Sb  Sb17  1  0.296  0.704  0.500  1.0
[/CIF]
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The material structure described by Ho5(GeSb)2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to three equivalent Ge(1) and three equivalent Sb(1) atoms to form distorted HoGe3Sb3 pentagonal pyramids that share corners with three equivalent Ho(2)Ge4Sb2 octahedra, corners with ten equivalent Ho(1)Ge3Sb3 pentagonal pyramids, edges with seven equivalent Ho(1)Ge3Sb3 pentagonal pyramids, faces with two equivalent Ho(2)Ge4Sb2 octahedra, and faces with two equivalent Ho(1)Ge3Sb3 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 35-42°. In the second Ho site, Ho(2) is bonded to four equivalent Ge(1) and two equivalent Sb(1) atoms to form HoGe4Sb2 octahedra that share corners with four equivalent Ho(2)Ge4Sb2 octahedra, corners with twelve equivalent Ho(1)Ge3Sb3 pentagonal pyramids, and faces with eight equivalent Ho(1)Ge3Sb3 pentagonal pyramids. The corner-sharing octahedral tilt angles are 47°. Ge(1) is bonded in a 8-coordinate geometry to two equivalent Ho(2) and six equivalent Ho(1) atoms. Sb(1) is bonded to one Ho(2) and six equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing SbHo7 pentagonal bipyramids. is represented by the CIF file [CIF]
data_Ho5(GeSb)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.465
_cell_length_b   8.465
_cell_length_c   7.898
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   124.558
_symmetry_Int_Tables_number   1
_cell_volume   466.072
_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  0.035  0.287  0.339  1.0
  Ho  Ho1  1  0.965  0.713  0.661  1.0
  Ho  Ho2  1  0.465  0.213  0.839  1.0
  Ho  Ho3  1  0.787  0.535  0.161  1.0
  Ho  Ho4  1  0.535  0.787  0.161  1.0
  Ho  Ho5  1  0.213  0.465  0.839  1.0
  Ho  Ho6  1  0.713  0.965  0.661  1.0
  Ho  Ho7  1  0.287  0.035  0.339  1.0
  Ho  Ho8  1  0.000  0.000  0.000  1.0
  Ho  Ho9  1  0.500  0.500  0.500  1.0
  Ge  Ge10  1  0.357  0.357  0.142  1.0
  Ge  Ge11  1  0.643  0.643  0.858  1.0
  Ge  Ge12  1  0.143  0.143  0.642  1.0
  Ge  Ge13  1  0.857  0.857  0.358  1.0
  Sb  Sb14  1  0.796  0.204  0.000  1.0
  Sb  Sb15  1  0.204  0.796  0.000  1.0
  Sb  Sb16  1  0.704  0.296  0.500  1.0
  Sb  Sb17  1  0.296  0.704  0.500  1.0
[/CIF]
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