The structure described by Ba2MgEuSbO6 crystallizes in the orthorhombic Immm space group. Ba(1) is bonded in a 9-coordinate geometry to one Mg(1), four equivalent O(1), and four equivalent O(2) atoms. Mg(1) is bonded in a square co-planar geometry to two equivalent Ba(1) and four equivalent O(1) atoms. Eu(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form EuO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-8°. Sb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SbO6 octahedra that share corners with six equivalent Eu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-8°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Mg(1), one Eu(1), and one Sb(1) atom. In the second O site, O(2) is bonded to four equivalent Ba(1), one Eu(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OBa4EuSb octahedra. The corner-sharing octahedral tilt angles range from 0-27°. is represented by the CIF card [CIF]
data_Ba2EuMgSbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.634
_cell_length_b   6.634
_cell_length_c   6.230
_cell_angle_alpha   61.992
_cell_angle_beta   61.992
_cell_angle_gamma   56.326
_symmetry_Int_Tables_number   1
_cell_volume   193.109
_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  0.691  0.691  0.809  1.0
  Ba  Ba1  1  0.309  0.309  0.191  1.0
  Eu  Eu2  1  0.500  0.500  0.500  1.0
  Mg  Mg3  1  0.000  0.000  0.500  1.0
  Sb  Sb4  1  0.000  0.000  0.000  1.0
  O  O5  1  0.226  0.774  0.740  1.0
  O  O6  1  0.226  0.774  0.260  1.0
  O  O7  1  0.774  0.226  0.740  1.0
  O  O8  1  0.235  0.235  0.765  1.0
  O  O9  1  0.774  0.226  0.260  1.0
  O  O10  1  0.765  0.765  0.235  1.0
[/CIF]
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The structure described by Ba2MgEuSbO6 crystallizes in the orthorhombic Immm space group. Ba(1) is bonded in a 9-coordinate geometry to one Mg(1), four equivalent O(1), and four equivalent O(2) atoms. Mg(1) is bonded in a square co-planar geometry to two equivalent Ba(1) and four equivalent O(1) atoms. Eu(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form EuO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-8°. Sb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SbO6 octahedra that share corners with six equivalent Eu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-8°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Mg(1), one Eu(1), and one Sb(1) atom. In the second O site, O(2) is bonded to four equivalent Ba(1), one Eu(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OBa4EuSb octahedra. The corner-sharing octahedral tilt angles range from 0-27°. is represented by the CIF card [CIF]
data_Ba2EuMgSbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.634
_cell_length_b   6.634
_cell_length_c   6.230
_cell_angle_alpha   61.992
_cell_angle_beta   61.992
_cell_angle_gamma   56.326
_symmetry_Int_Tables_number   1
_cell_volume   193.109
_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  0.691  0.691  0.809  1.0
  Ba  Ba1  1  0.309  0.309  0.191  1.0
  Eu  Eu2  1  0.500  0.500  0.500  1.0
  Mg  Mg3  1  0.000  0.000  0.500  1.0
  Sb  Sb4  1  0.000  0.000  0.000  1.0
  O  O5  1  0.226  0.774  0.740  1.0
  O  O6  1  0.226  0.774  0.260  1.0
  O  O7  1  0.774  0.226  0.740  1.0
  O  O8  1  0.235  0.235  0.765  1.0
  O  O9  1  0.774  0.226  0.260  1.0
  O  O10  1  0.765  0.765  0.235  1.0
[/CIF]
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