The compound described by BaEuCe2O6 crystallizes in the orthorhombic Cmmm space group. Ba(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(3) atoms. Eu(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. Ce(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing CeO6 octahedra. The corner-sharing octahedral tilt angles range from 0-32°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to two equivalent Ba(1), two equivalent Eu(1), and two equivalent Ce(1) atoms. In the second O site, O(2) is bonded to two equivalent Eu(1) and two equivalent Ce(1) atoms to form distorted OCe2Eu2 tetrahedra that share corners with four equivalent O(3)Ba2Ce2 tetrahedra, corners with six equivalent O(2)Ce2Eu2 tetrahedra, and  an edgeedge with one O(2)Ce2Eu2 tetrahedra. In the third O site, O(3) is bonded to two equivalent Ba(1) and two equivalent Ce(1) atoms to form distorted OBa2Ce2 tetrahedra that share corners with four equivalent O(2)Ce2Eu2 tetrahedra, corners with six equivalent O(3)Ba2Ce2 tetrahedra, and  an edgeedge with one O(3)Ba2Ce2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaCe2EuO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.490
_cell_length_b   6.192
_cell_length_c   6.192
_cell_angle_alpha   89.849
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   172.147
_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
  Ba  Ba0  1  0.500  0.000  0.000  1.0
  Ce  Ce1  1  0.000  0.000  0.500  1.0
  Ce  Ce2  1  0.000  0.500  0.000  1.0
  Eu  Eu3  1  0.500  0.500  0.500  1.0
  O  O4  1  0.500  0.000  0.500  1.0
  O  O5  1  0.500  0.500  0.000  1.0
  O  O6  1  0.000  0.323  0.677  1.0
  O  O7  1  0.000  0.677  0.323  1.0
  O  O8  1  0.000  0.814  0.814  1.0
  O  O9  1  0.000  0.186  0.186  1.0
[/CIF]
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The compound described by BaEuCe2O6 crystallizes in the orthorhombic Cmmm space group. Ba(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(3) atoms. Eu(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. Ce(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing CeO6 octahedra. The corner-sharing octahedral tilt angles range from 0-32°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to two equivalent Ba(1), two equivalent Eu(1), and two equivalent Ce(1) atoms. In the second O site, O(2) is bonded to two equivalent Eu(1) and two equivalent Ce(1) atoms to form distorted OCe2Eu2 tetrahedra that share corners with four equivalent O(3)Ba2Ce2 tetrahedra, corners with six equivalent O(2)Ce2Eu2 tetrahedra, and  an edgeedge with one O(2)Ce2Eu2 tetrahedra. In the third O site, O(3) is bonded to two equivalent Ba(1) and two equivalent Ce(1) atoms to form distorted OBa2Ce2 tetrahedra that share corners with four equivalent O(2)Ce2Eu2 tetrahedra, corners with six equivalent O(3)Ba2Ce2 tetrahedra, and  an edgeedge with one O(3)Ba2Ce2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaCe2EuO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.490
_cell_length_b   6.192
_cell_length_c   6.192
_cell_angle_alpha   89.849
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   172.147
_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
  Ba  Ba0  1  0.500  0.000  0.000  1.0
  Ce  Ce1  1  0.000  0.000  0.500  1.0
  Ce  Ce2  1  0.000  0.500  0.000  1.0
  Eu  Eu3  1  0.500  0.500  0.500  1.0
  O  O4  1  0.500  0.000  0.500  1.0
  O  O5  1  0.500  0.500  0.000  1.0
  O  O6  1  0.000  0.323  0.677  1.0
  O  O7  1  0.000  0.677  0.323  1.0
  O  O8  1  0.000  0.814  0.814  1.0
  O  O9  1  0.000  0.186  0.186  1.0
[/CIF]
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