The material described by MgEu2Ti2O6 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. Eu(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Ti(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 1-15°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), two equivalent Eu(1), and two equivalent Ti(1) atoms to form a mixture of distorted face, corner, and edge-sharing OEu2MgTi2 trigonal bipyramids. In the second O site, O(2) is bonded to one Mg(1), two equivalent Eu(1), and two equivalent Ti(1) atoms to form a mixture of distorted face, corner, and edge-sharing OEu2MgTi2 trigonal bipyramids. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Eu(1) and two equivalent Ti(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2MgTi2O6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.084
_cell_length_b   5.686
_cell_length_c   5.693
_cell_angle_alpha   89.655
_cell_angle_beta   119.504
_cell_angle_gamma   119.396
_symmetry_Int_Tables_number   1
_cell_volume   141.955
_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  0.362  0.213  0.713  1.0
  Eu  Eu1  1  0.638  0.787  0.287  1.0
  Mg  Mg2  1  0.000  0.500  0.000  1.0
  Ti  Ti3  1  0.000  0.500  0.500  1.0
  Ti  Ti4  1  0.000  0.000  0.000  1.0
  O  O5  1  0.000  0.748  0.752  1.0
  O  O6  1  1.000  0.252  0.248  1.0
  O  O7  1  0.044  0.771  0.271  1.0
  O  O8  1  0.956  0.229  0.729  1.0
  O  O9  1  0.500  0.713  0.787  1.0
  O  O10  1  0.500  0.287  0.213  1.0
[/CIF]
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The material described by MgEu2Ti2O6 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. Eu(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Ti(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 1-15°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), two equivalent Eu(1), and two equivalent Ti(1) atoms to form a mixture of distorted face, corner, and edge-sharing OEu2MgTi2 trigonal bipyramids. In the second O site, O(2) is bonded to one Mg(1), two equivalent Eu(1), and two equivalent Ti(1) atoms to form a mixture of distorted face, corner, and edge-sharing OEu2MgTi2 trigonal bipyramids. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Eu(1) and two equivalent Ti(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2MgTi2O6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.084
_cell_length_b   5.686
_cell_length_c   5.693
_cell_angle_alpha   89.655
_cell_angle_beta   119.504
_cell_angle_gamma   119.396
_symmetry_Int_Tables_number   1
_cell_volume   141.955
_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  0.362  0.213  0.713  1.0
  Eu  Eu1  1  0.638  0.787  0.287  1.0
  Mg  Mg2  1  0.000  0.500  0.000  1.0
  Ti  Ti3  1  0.000  0.500  0.500  1.0
  Ti  Ti4  1  0.000  0.000  0.000  1.0
  O  O5  1  0.000  0.748  0.752  1.0
  O  O6  1  1.000  0.252  0.248  1.0
  O  O7  1  0.044  0.771  0.271  1.0
  O  O8  1  0.956  0.229  0.729  1.0
  O  O9  1  0.500  0.713  0.787  1.0
  O  O10  1  0.500  0.287  0.213  1.0
[/CIF]
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