The material structure described by ErEu3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Er(1) is bonded to twelve equivalent Eu(1) atoms to form ErEu12 cuboctahedra that share corners with six equivalent Er(1)Eu12 cuboctahedra, corners with twelve equivalent Eu(1)Eu8Er4 cuboctahedra, edges with eighteen equivalent Eu(1)Eu8Er4 cuboctahedra, faces with eight equivalent Er(1)Eu12 cuboctahedra, and faces with twelve equivalent Eu(1)Eu8Er4 cuboctahedra. Eu(1) is bonded to four equivalent Er(1) and eight equivalent Eu(1) atoms to form EuEu8Er4 cuboctahedra that share corners with four equivalent Er(1)Eu12 cuboctahedra, corners with fourteen equivalent Eu(1)Eu8Er4 cuboctahedra, edges with six equivalent Er(1)Eu12 cuboctahedra, edges with twelve equivalent Eu(1)Eu8Er4 cuboctahedra, faces with four equivalent Er(1)Eu12 cuboctahedra, and faces with sixteen equivalent Eu(1)Eu8Er4 cuboctahedra. is represented by the CIF file [CIF]
data_Eu3Er
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.656
_cell_length_b   7.656
_cell_length_c   6.159
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   312.614
_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
  Eu  Eu0  1  0.170  0.340  0.250  1.0
  Eu  Eu1  1  0.660  0.830  0.250  1.0
  Eu  Eu2  1  0.170  0.830  0.250  1.0
  Eu  Eu3  1  0.830  0.660  0.750  1.0
  Eu  Eu4  1  0.340  0.170  0.750  1.0
  Eu  Eu5  1  0.830  0.170  0.750  1.0
  Er  Er6  1  0.333  0.667  0.750  1.0
  Er  Er7  1  0.667  0.333  0.250  1.0
[/CIF]
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The material structure described by ErEu3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Er(1) is bonded to twelve equivalent Eu(1) atoms to form ErEu12 cuboctahedra that share corners with six equivalent Er(1)Eu12 cuboctahedra, corners with twelve equivalent Eu(1)Eu8Er4 cuboctahedra, edges with eighteen equivalent Eu(1)Eu8Er4 cuboctahedra, faces with eight equivalent Er(1)Eu12 cuboctahedra, and faces with twelve equivalent Eu(1)Eu8Er4 cuboctahedra. Eu(1) is bonded to four equivalent Er(1) and eight equivalent Eu(1) atoms to form EuEu8Er4 cuboctahedra that share corners with four equivalent Er(1)Eu12 cuboctahedra, corners with fourteen equivalent Eu(1)Eu8Er4 cuboctahedra, edges with six equivalent Er(1)Eu12 cuboctahedra, edges with twelve equivalent Eu(1)Eu8Er4 cuboctahedra, faces with four equivalent Er(1)Eu12 cuboctahedra, and faces with sixteen equivalent Eu(1)Eu8Er4 cuboctahedra. is represented by the CIF file [CIF]
data_Eu3Er
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.656
_cell_length_b   7.656
_cell_length_c   6.159
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   312.614
_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
  Eu  Eu0  1  0.170  0.340  0.250  1.0
  Eu  Eu1  1  0.660  0.830  0.250  1.0
  Eu  Eu2  1  0.170  0.830  0.250  1.0
  Eu  Eu3  1  0.830  0.660  0.750  1.0
  Eu  Eu4  1  0.340  0.170  0.750  1.0
  Eu  Eu5  1  0.830  0.170  0.750  1.0
  Er  Er6  1  0.333  0.667  0.750  1.0
  Er  Er7  1  0.667  0.333  0.250  1.0
[/CIF]
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