The material described by HoSm3 is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Ho(1) is bonded to four equivalent Sm(2) and eight equivalent Sm(1) atoms to form HoSm12 cuboctahedra that share corners with four equivalent Ho(1)Sm12 cuboctahedra, corners with eight equivalent Sm(2)Sm8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Sm12 cuboctahedra, edges with sixteen equivalent Sm(1)Sm8Ho4 cuboctahedra, faces with four equivalent Ho(1)Sm12 cuboctahedra, faces with six equivalent Sm(2)Sm8Ho4 cuboctahedra, and faces with eight equivalent Sm(1)Sm8Ho4 cuboctahedra. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to four equivalent Ho(1), four equivalent Sm(1), and four equivalent Sm(2) atoms to form SmSm8Ho4 cuboctahedra that share corners with twelve equivalent Sm(1)Sm8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Sm12 cuboctahedra, edges with eight equivalent Sm(1)Sm8Ho4 cuboctahedra, edges with eight equivalent Sm(2)Sm8Ho4 cuboctahedra, faces with four equivalent Ho(1)Sm12 cuboctahedra, faces with four equivalent Sm(2)Sm8Ho4 cuboctahedra, and faces with ten equivalent Sm(1)Sm8Ho4 cuboctahedra. In the second Sm site, Sm(2) is bonded to four equivalent Ho(1) and eight equivalent Sm(1) atoms to form SmSm8Ho4 cuboctahedra that share corners with four equivalent Sm(2)Sm8Ho4 cuboctahedra, corners with eight equivalent Ho(1)Sm12 cuboctahedra, edges with eight equivalent Sm(2)Sm8Ho4 cuboctahedra, edges with sixteen equivalent Sm(1)Sm8Ho4 cuboctahedra, faces with four equivalent Sm(2)Sm8Ho4 cuboctahedra, faces with six equivalent Ho(1)Sm12 cuboctahedra, and faces with eight equivalent Sm(1)Sm8Ho4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm3Ho
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.225
_cell_length_b   6.225
_cell_length_c   6.225
_cell_angle_alpha   131.523
_cell_angle_beta   131.523
_cell_angle_gamma   70.984
_symmetry_Int_Tables_number   1
_cell_volume   132.429
_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
  Sm  Sm0  1  0.750  0.250  0.500  1.0
  Sm  Sm1  1  0.250  0.750  0.500  1.0
  Sm  Sm2  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 HoSm3 is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Ho(1) is bonded to four equivalent Sm(2) and eight equivalent Sm(1) atoms to form HoSm12 cuboctahedra that share corners with four equivalent Ho(1)Sm12 cuboctahedra, corners with eight equivalent Sm(2)Sm8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Sm12 cuboctahedra, edges with sixteen equivalent Sm(1)Sm8Ho4 cuboctahedra, faces with four equivalent Ho(1)Sm12 cuboctahedra, faces with six equivalent Sm(2)Sm8Ho4 cuboctahedra, and faces with eight equivalent Sm(1)Sm8Ho4 cuboctahedra. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to four equivalent Ho(1), four equivalent Sm(1), and four equivalent Sm(2) atoms to form SmSm8Ho4 cuboctahedra that share corners with twelve equivalent Sm(1)Sm8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Sm12 cuboctahedra, edges with eight equivalent Sm(1)Sm8Ho4 cuboctahedra, edges with eight equivalent Sm(2)Sm8Ho4 cuboctahedra, faces with four equivalent Ho(1)Sm12 cuboctahedra, faces with four equivalent Sm(2)Sm8Ho4 cuboctahedra, and faces with ten equivalent Sm(1)Sm8Ho4 cuboctahedra. In the second Sm site, Sm(2) is bonded to four equivalent Ho(1) and eight equivalent Sm(1) atoms to form SmSm8Ho4 cuboctahedra that share corners with four equivalent Sm(2)Sm8Ho4 cuboctahedra, corners with eight equivalent Ho(1)Sm12 cuboctahedra, edges with eight equivalent Sm(2)Sm8Ho4 cuboctahedra, edges with sixteen equivalent Sm(1)Sm8Ho4 cuboctahedra, faces with four equivalent Sm(2)Sm8Ho4 cuboctahedra, faces with six equivalent Ho(1)Sm12 cuboctahedra, and faces with eight equivalent Sm(1)Sm8Ho4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm3Ho
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.225
_cell_length_b   6.225
_cell_length_c   6.225
_cell_angle_alpha   131.523
_cell_angle_beta   131.523
_cell_angle_gamma   70.984
_symmetry_Int_Tables_number   1
_cell_volume   132.429
_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
  Sm  Sm0  1  0.750  0.250  0.500  1.0
  Sm  Sm1  1  0.250  0.750  0.500  1.0
  Sm  Sm2  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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