The structure described by DyEuTi2O7 crystallizes in the orthorhombic Imma space group. Dy(1) is bonded to two equivalent O(1), two equivalent O(4), and four equivalent O(3) atoms to form distorted DyO8 hexagonal bipyramids that share edges with two equivalent Dy(1)O8 hexagonal bipyramids, edges with four equivalent Eu(1)O8 hexagonal bipyramids, edges with two equivalent Ti(2)O6 octahedra, and edges with four equivalent Ti(1)O6 octahedra. Eu(1) is bonded to two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms to form distorted EuO8 hexagonal bipyramids that share edges with two equivalent Eu(1)O8 hexagonal bipyramids, edges with four equivalent Dy(1)O8 hexagonal bipyramids, edges with two equivalent Ti(1)O6 octahedra, and edges with four equivalent Ti(2)O6 octahedra. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form TiO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with four equivalent Ti(2)O6 octahedra, edges with two equivalent Eu(1)O8 hexagonal bipyramids, and edges with four equivalent Dy(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 47-48°. In the second Ti site, Ti(2) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form TiO6 octahedra that share corners with two equivalent Ti(2)O6 octahedra, corners with four equivalent Ti(1)O6 octahedra, edges with two equivalent Dy(1)O8 hexagonal bipyramids, and edges with four equivalent Eu(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 47°. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Dy(1) and two equivalent Ti(1) atoms to form distorted ODy2Ti2 tetrahedra that share corners with two equivalent O(4)Eu2Dy2 tetrahedra, corners with four equivalent O(1)Dy2Ti2 tetrahedra, corners with eight equivalent O(3)EuDyTi2 tetrahedra,  an edgeedge with one O(4)Eu2Dy2 tetrahedra, and edges with four equivalent O(3)EuDyTi2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Eu(1) and two equivalent Ti(2) atoms to form distorted OEu2Ti2 tetrahedra that share corners with two equivalent O(4)Eu2Dy2 tetrahedra, corners with four equivalent O(2)Eu2Ti2 tetrahedra, corners with eight equivalent O(3)EuDyTi2 tetrahedra,  an edgeedge with one O(4)Eu2Dy2 tetrahedra, and edges with four equivalent O(3)EuDyTi2 tetrahedra. In the third O site, O(3) is bonded to one Dy(1), one Eu(1), one Ti(1), and one Ti(2) atom to form distorted OEuDyTi2 tetrahedra that share corners with two equivalent O(1)Dy2Ti2 tetrahedra, corners with two equivalent O(4)Eu2Dy2 tetrahedra, corners with two equivalent O(2)Eu2Ti2 tetrahedra, corners with eight equivalent O(3)EuDyTi2 tetrahedra,  an edgeedge with one O(1)Dy2Ti2 tetrahedra,  an edgeedge with one O(4)Eu2Dy2 tetrahedra,  an edgeedge with one O(2)Eu2Ti2 tetrahedra, and edges with two equivalent O(3)EuDyTi2 tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Dy(1) and two equivalent Eu(1) atoms to form OEu2Dy2 tetrahedra that share corners with two equivalent O(1)Dy2Ti2 tetrahedra, corners with two equivalent O(2)Eu2Ti2 tetrahedra, corners with four equivalent O(4)Eu2Dy2 tetrahedra, corners with eight equivalent O(3)EuDyTi2 tetrahedra,  an edgeedge with one O(1)Dy2Ti2 tetrahedra,  an edgeedge with one O(2)Eu2Ti2 tetrahedra, and edges with four equivalent O(3)EuDyTi2 tetrahedra. is represented by the CIF card [CIF]
data_EuDyTi2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.250
_cell_length_b   7.250
_cell_length_c   7.250
_cell_angle_alpha   120.236
_cell_angle_beta   119.845
_cell_angle_gamma   89.930
_symmetry_Int_Tables_number   1
_cell_volume   269.290
_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  0.000  0.000  0.500  1.0
  Eu  Eu1  1  0.000  0.500  0.000  1.0
  Dy  Dy2  1  0.000  0.000  0.000  1.0
  Dy  Dy3  1  0.500  0.000  0.500  1.0
  Ti  Ti4  1  0.500  0.500  0.500  1.0
  Ti  Ti5  1  0.500  0.000  0.000  1.0
  Ti  Ti6  1  0.500  0.500  0.000  1.0
  Ti  Ti7  1  0.000  0.500  0.500  1.0
  O  O8  1  0.421  0.171  0.250  1.0
  O  O9  1  0.826  0.576  0.250  1.0
  O  O10  1  0.425  0.581  0.253  1.0
  O  O11  1  0.827  0.172  0.247  1.0
  O  O12  1  0.425  0.172  0.845  1.0
  O  O13  1  0.827  0.581  0.655  1.0
  O  O14  1  0.579  0.829  0.750  1.0
  O  O15  1  0.174  0.424  0.750  1.0
  O  O16  1  0.575  0.419  0.747  1.0
  O  O17  1  0.173  0.828  0.753  1.0
  O  O18  1  0.575  0.828  0.155  1.0
  O  O19  1  0.173  0.419  0.345  1.0
  O  O20  1  0.131  0.881  0.250  1.0
  O  O21  1  0.869  0.119  0.750  1.0
[/CIF]
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The structure described by DyEuTi2O7 crystallizes in the orthorhombic Imma space group. Dy(1) is bonded to two equivalent O(1), two equivalent O(4), and four equivalent O(3) atoms to form distorted DyO8 hexagonal bipyramids that share edges with two equivalent Dy(1)O8 hexagonal bipyramids, edges with four equivalent Eu(1)O8 hexagonal bipyramids, edges with two equivalent Ti(2)O6 octahedra, and edges with four equivalent Ti(1)O6 octahedra. Eu(1) is bonded to two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms to form distorted EuO8 hexagonal bipyramids that share edges with two equivalent Eu(1)O8 hexagonal bipyramids, edges with four equivalent Dy(1)O8 hexagonal bipyramids, edges with two equivalent Ti(1)O6 octahedra, and edges with four equivalent Ti(2)O6 octahedra. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form TiO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with four equivalent Ti(2)O6 octahedra, edges with two equivalent Eu(1)O8 hexagonal bipyramids, and edges with four equivalent Dy(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 47-48°. In the second Ti site, Ti(2) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form TiO6 octahedra that share corners with two equivalent Ti(2)O6 octahedra, corners with four equivalent Ti(1)O6 octahedra, edges with two equivalent Dy(1)O8 hexagonal bipyramids, and edges with four equivalent Eu(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 47°. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Dy(1) and two equivalent Ti(1) atoms to form distorted ODy2Ti2 tetrahedra that share corners with two equivalent O(4)Eu2Dy2 tetrahedra, corners with four equivalent O(1)Dy2Ti2 tetrahedra, corners with eight equivalent O(3)EuDyTi2 tetrahedra,  an edgeedge with one O(4)Eu2Dy2 tetrahedra, and edges with four equivalent O(3)EuDyTi2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Eu(1) and two equivalent Ti(2) atoms to form distorted OEu2Ti2 tetrahedra that share corners with two equivalent O(4)Eu2Dy2 tetrahedra, corners with four equivalent O(2)Eu2Ti2 tetrahedra, corners with eight equivalent O(3)EuDyTi2 tetrahedra,  an edgeedge with one O(4)Eu2Dy2 tetrahedra, and edges with four equivalent O(3)EuDyTi2 tetrahedra. In the third O site, O(3) is bonded to one Dy(1), one Eu(1), one Ti(1), and one Ti(2) atom to form distorted OEuDyTi2 tetrahedra that share corners with two equivalent O(1)Dy2Ti2 tetrahedra, corners with two equivalent O(4)Eu2Dy2 tetrahedra, corners with two equivalent O(2)Eu2Ti2 tetrahedra, corners with eight equivalent O(3)EuDyTi2 tetrahedra,  an edgeedge with one O(1)Dy2Ti2 tetrahedra,  an edgeedge with one O(4)Eu2Dy2 tetrahedra,  an edgeedge with one O(2)Eu2Ti2 tetrahedra, and edges with two equivalent O(3)EuDyTi2 tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Dy(1) and two equivalent Eu(1) atoms to form OEu2Dy2 tetrahedra that share corners with two equivalent O(1)Dy2Ti2 tetrahedra, corners with two equivalent O(2)Eu2Ti2 tetrahedra, corners with four equivalent O(4)Eu2Dy2 tetrahedra, corners with eight equivalent O(3)EuDyTi2 tetrahedra,  an edgeedge with one O(1)Dy2Ti2 tetrahedra,  an edgeedge with one O(2)Eu2Ti2 tetrahedra, and edges with four equivalent O(3)EuDyTi2 tetrahedra. is represented by the CIF card [CIF]
data_EuDyTi2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.250
_cell_length_b   7.250
_cell_length_c   7.250
_cell_angle_alpha   120.236
_cell_angle_beta   119.845
_cell_angle_gamma   89.930
_symmetry_Int_Tables_number   1
_cell_volume   269.290
_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  0.000  0.000  0.500  1.0
  Eu  Eu1  1  0.000  0.500  0.000  1.0
  Dy  Dy2  1  0.000  0.000  0.000  1.0
  Dy  Dy3  1  0.500  0.000  0.500  1.0
  Ti  Ti4  1  0.500  0.500  0.500  1.0
  Ti  Ti5  1  0.500  0.000  0.000  1.0
  Ti  Ti6  1  0.500  0.500  0.000  1.0
  Ti  Ti7  1  0.000  0.500  0.500  1.0
  O  O8  1  0.421  0.171  0.250  1.0
  O  O9  1  0.826  0.576  0.250  1.0
  O  O10  1  0.425  0.581  0.253  1.0
  O  O11  1  0.827  0.172  0.247  1.0
  O  O12  1  0.425  0.172  0.845  1.0
  O  O13  1  0.827  0.581  0.655  1.0
  O  O14  1  0.579  0.829  0.750  1.0
  O  O15  1  0.174  0.424  0.750  1.0
  O  O16  1  0.575  0.419  0.747  1.0
  O  O17  1  0.173  0.828  0.753  1.0
  O  O18  1  0.575  0.828  0.155  1.0
  O  O19  1  0.173  0.419  0.345  1.0
  O  O20  1  0.131  0.881  0.250  1.0
  O  O21  1  0.869  0.119  0.750  1.0
[/CIF]
.