The crystal structure described by Eu2TaAlO6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Eu(1) is bonded to twelve equivalent O(1) atoms to form EuO12 cuboctahedra that share corners with twelve equivalent Eu(1)O12 cuboctahedra, faces with six equivalent Eu(1)O12 cuboctahedra, faces with four equivalent Ta(1)O6 octahedra, and faces with four equivalent Al(1)O6 octahedra. Ta(1) is bonded to six equivalent O(1) atoms to form TaO6 octahedra that share corners with six equivalent Al(1)O6 octahedra and faces with eight equivalent Eu(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. Al(1) is bonded to six equivalent O(1) atoms to form AlO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra and faces with eight equivalent Eu(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. O(1) is bonded in a distorted linear geometry to four equivalent Eu(1), one Ta(1), and one Al(1) atom. is represented by the CIF card [CIF]
data_Eu2TaAlO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.546
_cell_length_b   5.546
_cell_length_c   5.546
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   120.624
_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
  Eu  Eu0  1  0.250  0.250  0.250  1.0
  Eu  Eu1  1  0.750  0.750  0.750  1.0
  Ta  Ta2  1  0.500  0.500  0.500  1.0
  Al  Al3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.755  0.245  0.245  1.0
  O  O5  1  0.245  0.755  0.755  1.0
  O  O6  1  0.245  0.755  0.245  1.0
  O  O7  1  0.755  0.245  0.755  1.0
  O  O8  1  0.245  0.245  0.755  1.0
  O  O9  1  0.755  0.755  0.245  1.0
[/CIF]
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The crystal structure described by Eu2TaAlO6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Eu(1) is bonded to twelve equivalent O(1) atoms to form EuO12 cuboctahedra that share corners with twelve equivalent Eu(1)O12 cuboctahedra, faces with six equivalent Eu(1)O12 cuboctahedra, faces with four equivalent Ta(1)O6 octahedra, and faces with four equivalent Al(1)O6 octahedra. Ta(1) is bonded to six equivalent O(1) atoms to form TaO6 octahedra that share corners with six equivalent Al(1)O6 octahedra and faces with eight equivalent Eu(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. Al(1) is bonded to six equivalent O(1) atoms to form AlO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra and faces with eight equivalent Eu(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. O(1) is bonded in a distorted linear geometry to four equivalent Eu(1), one Ta(1), and one Al(1) atom. is represented by the CIF card [CIF]
data_Eu2TaAlO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.546
_cell_length_b   5.546
_cell_length_c   5.546
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   120.624
_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
  Eu  Eu0  1  0.250  0.250  0.250  1.0
  Eu  Eu1  1  0.750  0.750  0.750  1.0
  Ta  Ta2  1  0.500  0.500  0.500  1.0
  Al  Al3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.755  0.245  0.245  1.0
  O  O5  1  0.245  0.755  0.755  1.0
  O  O6  1  0.245  0.755  0.245  1.0
  O  O7  1  0.755  0.245  0.755  1.0
  O  O8  1  0.245  0.245  0.755  1.0
  O  O9  1  0.755  0.755  0.245  1.0
[/CIF]
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