The crystal structure described by Er3Ho is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Er(1) is bonded to eight equivalent Er(1) and four equivalent Ho(1) atoms to form ErHo4Er8 cuboctahedra that share corners with four equivalent Ho(1)Er12 cuboctahedra, corners with fourteen equivalent Er(1)Ho4Er8 cuboctahedra, edges with six equivalent Ho(1)Er12 cuboctahedra, edges with twelve equivalent Er(1)Ho4Er8 cuboctahedra, faces with four equivalent Ho(1)Er12 cuboctahedra, and faces with sixteen equivalent Er(1)Ho4Er8 cuboctahedra. Ho(1) is bonded to twelve equivalent Er(1) atoms to form HoEr12 cuboctahedra that share corners with six equivalent Ho(1)Er12 cuboctahedra, corners with twelve equivalent Er(1)Ho4Er8 cuboctahedra, edges with eighteen equivalent Er(1)Ho4Er8 cuboctahedra, faces with eight equivalent Ho(1)Er12 cuboctahedra, and faces with twelve equivalent Er(1)Ho4Er8 cuboctahedra. is represented by the CIF card [CIF]
data_HoEr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.184
_cell_length_b   7.185
_cell_length_c   5.525
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   246.975
_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  0.333  0.667  0.750  1.0
  Ho  Ho1  1  0.667  0.333  0.250  1.0
  Er  Er2  1  0.167  0.333  0.250  1.0
  Er  Er3  1  0.667  0.834  0.250  1.0
  Er  Er4  1  0.167  0.834  0.250  1.0
  Er  Er5  1  0.833  0.667  0.750  1.0
  Er  Er6  1  0.333  0.166  0.750  1.0
  Er  Er7  1  0.833  0.166  0.750  1.0
[/CIF]
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The crystal structure described by Er3Ho is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Er(1) is bonded to eight equivalent Er(1) and four equivalent Ho(1) atoms to form ErHo4Er8 cuboctahedra that share corners with four equivalent Ho(1)Er12 cuboctahedra, corners with fourteen equivalent Er(1)Ho4Er8 cuboctahedra, edges with six equivalent Ho(1)Er12 cuboctahedra, edges with twelve equivalent Er(1)Ho4Er8 cuboctahedra, faces with four equivalent Ho(1)Er12 cuboctahedra, and faces with sixteen equivalent Er(1)Ho4Er8 cuboctahedra. Ho(1) is bonded to twelve equivalent Er(1) atoms to form HoEr12 cuboctahedra that share corners with six equivalent Ho(1)Er12 cuboctahedra, corners with twelve equivalent Er(1)Ho4Er8 cuboctahedra, edges with eighteen equivalent Er(1)Ho4Er8 cuboctahedra, faces with eight equivalent Ho(1)Er12 cuboctahedra, and faces with twelve equivalent Er(1)Ho4Er8 cuboctahedra. is represented by the CIF card [CIF]
data_HoEr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.184
_cell_length_b   7.185
_cell_length_c   5.525
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   246.975
_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  0.333  0.667  0.750  1.0
  Ho  Ho1  1  0.667  0.333  0.250  1.0
  Er  Er2  1  0.167  0.333  0.250  1.0
  Er  Er3  1  0.667  0.834  0.250  1.0
  Er  Er4  1  0.167  0.834  0.250  1.0
  Er  Er5  1  0.833  0.667  0.750  1.0
  Er  Er6  1  0.333  0.166  0.750  1.0
  Er  Er7  1  0.833  0.166  0.750  1.0
[/CIF]
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