The material described by HoGd3 is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Ho(1) is bonded to four equivalent Gd(2) and eight equivalent Gd(1) atoms to form HoGd12 cuboctahedra that share corners with four equivalent Ho(1)Gd12 cuboctahedra, corners with eight equivalent Gd(2)Gd8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Gd12 cuboctahedra, edges with sixteen equivalent Gd(1)Gd8Ho4 cuboctahedra, faces with four equivalent Ho(1)Gd12 cuboctahedra, faces with six equivalent Gd(2)Gd8Ho4 cuboctahedra, and faces with eight equivalent Gd(1)Gd8Ho4 cuboctahedra. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to four equivalent Ho(1), four equivalent Gd(1), and four equivalent Gd(2) atoms to form GdGd8Ho4 cuboctahedra that share corners with twelve equivalent Gd(1)Gd8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Gd12 cuboctahedra, edges with eight equivalent Gd(1)Gd8Ho4 cuboctahedra, edges with eight equivalent Gd(2)Gd8Ho4 cuboctahedra, faces with four equivalent Ho(1)Gd12 cuboctahedra, faces with four equivalent Gd(2)Gd8Ho4 cuboctahedra, and faces with ten equivalent Gd(1)Gd8Ho4 cuboctahedra. In the second Gd site, Gd(2) is bonded to four equivalent Ho(1) and eight equivalent Gd(1) atoms to form GdGd8Ho4 cuboctahedra that share corners with four equivalent Gd(2)Gd8Ho4 cuboctahedra, corners with eight equivalent Ho(1)Gd12 cuboctahedra, edges with eight equivalent Gd(2)Gd8Ho4 cuboctahedra, edges with sixteen equivalent Gd(1)Gd8Ho4 cuboctahedra, faces with four equivalent Gd(2)Gd8Ho4 cuboctahedra, faces with six equivalent Ho(1)Gd12 cuboctahedra, and faces with eight equivalent Gd(1)Gd8Ho4 cuboctahedra. is represented by the CIF file [CIF]
data_Gd3Ho
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.219
_cell_length_b   6.219
_cell_length_c   6.219
_cell_angle_alpha   131.939
_cell_angle_beta   131.939
_cell_angle_gamma   70.326
_symmetry_Int_Tables_number   1
_cell_volume   130.420
_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
  Gd  Gd0  1  0.750  0.250  0.500  1.0
  Gd  Gd1  1  0.250  0.750  0.500  1.0
  Gd  Gd2  1  0.500  0.500  0.000  1.0
  Ho  Ho3  1  0.000  0.000  0.000  1.0
[/CIF]
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The material described by HoGd3 is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Ho(1) is bonded to four equivalent Gd(2) and eight equivalent Gd(1) atoms to form HoGd12 cuboctahedra that share corners with four equivalent Ho(1)Gd12 cuboctahedra, corners with eight equivalent Gd(2)Gd8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Gd12 cuboctahedra, edges with sixteen equivalent Gd(1)Gd8Ho4 cuboctahedra, faces with four equivalent Ho(1)Gd12 cuboctahedra, faces with six equivalent Gd(2)Gd8Ho4 cuboctahedra, and faces with eight equivalent Gd(1)Gd8Ho4 cuboctahedra. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to four equivalent Ho(1), four equivalent Gd(1), and four equivalent Gd(2) atoms to form GdGd8Ho4 cuboctahedra that share corners with twelve equivalent Gd(1)Gd8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Gd12 cuboctahedra, edges with eight equivalent Gd(1)Gd8Ho4 cuboctahedra, edges with eight equivalent Gd(2)Gd8Ho4 cuboctahedra, faces with four equivalent Ho(1)Gd12 cuboctahedra, faces with four equivalent Gd(2)Gd8Ho4 cuboctahedra, and faces with ten equivalent Gd(1)Gd8Ho4 cuboctahedra. In the second Gd site, Gd(2) is bonded to four equivalent Ho(1) and eight equivalent Gd(1) atoms to form GdGd8Ho4 cuboctahedra that share corners with four equivalent Gd(2)Gd8Ho4 cuboctahedra, corners with eight equivalent Ho(1)Gd12 cuboctahedra, edges with eight equivalent Gd(2)Gd8Ho4 cuboctahedra, edges with sixteen equivalent Gd(1)Gd8Ho4 cuboctahedra, faces with four equivalent Gd(2)Gd8Ho4 cuboctahedra, faces with six equivalent Ho(1)Gd12 cuboctahedra, and faces with eight equivalent Gd(1)Gd8Ho4 cuboctahedra. is represented by the CIF file [CIF]
data_Gd3Ho
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.219
_cell_length_b   6.219
_cell_length_c   6.219
_cell_angle_alpha   131.939
_cell_angle_beta   131.939
_cell_angle_gamma   70.326
_symmetry_Int_Tables_number   1
_cell_volume   130.420
_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
  Gd  Gd0  1  0.750  0.250  0.500  1.0
  Gd  Gd1  1  0.250  0.750  0.500  1.0
  Gd  Gd2  1  0.500  0.500  0.000  1.0
  Ho  Ho3  1  0.000  0.000  0.000  1.0
[/CIF]
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