The compound described by Yb2EuO4 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to one O(2), two equivalent O(1), and three equivalent O(3) atoms to form a mixture of edge and corner-sharing YbO6 octahedra. The corner-sharing octahedral tilt angles range from 49-73°. In the second Yb site, Yb(2) is bonded to one O(1), two equivalent O(2), and three equivalent O(4) atoms to form a mixture of distorted edge and corner-sharing YbO6 octahedra. The corner-sharing octahedral tilt angles range from 49-73°. Eu(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Yb(2), two equivalent Yb(1), and two equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing OYb3Eu2 trigonal bipyramids. In the second O site, O(2) is bonded to one Yb(1), two equivalent Yb(2), and two equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing OYb3Eu2 trigonal bipyramids. In the third O site, O(3) is bonded to three equivalent Yb(1) and two equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing OYb3Eu2 square pyramids. In the fourth O site, O(4) is bonded to three equivalent Yb(2) and two equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing OYb3Eu2 trigonal bipyramids. is represented by the CIF card [CIF]
data_Yb2EuO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.345
_cell_length_b   9.702
_cell_length_c   11.792
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   382.758
_cell_formula_units_Z   4
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
  Yb  Yb0  1  0.750  0.918  0.606  1.0
  Yb  Yb1  1  0.250  0.082  0.394  1.0
  Yb  Yb2  1  0.250  0.582  0.106  1.0
  Yb  Yb3  1  0.750  0.418  0.894  1.0
  Yb  Yb4  1  0.750  0.423  0.392  1.0
  Yb  Yb5  1  0.250  0.577  0.608  1.0
  Yb  Yb6  1  0.250  0.077  0.892  1.0
  Yb  Yb7  1  0.750  0.923  0.108  1.0
  Eu  Eu8  1  0.750  0.753  0.338  1.0
  Eu  Eu9  1  0.250  0.247  0.662  1.0
  Eu  Eu10  1  0.250  0.747  0.838  1.0
  Eu  Eu11  1  0.750  0.253  0.162  1.0
  O  O12  1  0.750  0.524  0.221  1.0
  O  O13  1  0.250  0.476  0.779  1.0
  O  O14  1  0.250  0.976  0.721  1.0
  O  O15  1  0.750  0.024  0.279  1.0
  O  O16  1  0.750  0.711  0.694  1.0
  O  O17  1  0.250  0.289  0.306  1.0
  O  O18  1  0.250  0.789  0.194  1.0
  O  O19  1  0.750  0.211  0.806  1.0
  O  O20  1  0.750  0.638  0.965  1.0
  O  O21  1  0.250  0.362  0.035  1.0
  O  O22  1  0.250  0.862  0.465  1.0
  O  O23  1  0.750  0.138  0.535  1.0
  O  O24  1  0.750  0.909  0.914  1.0
  O  O25  1  0.250  0.091  0.086  1.0
  O  O26  1  0.250  0.591  0.414  1.0
  O  O27  1  0.750  0.409  0.586  1.0
[/CIF]
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The compound described by Yb2EuO4 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to one O(2), two equivalent O(1), and three equivalent O(3) atoms to form a mixture of edge and corner-sharing YbO6 octahedra. The corner-sharing octahedral tilt angles range from 49-73°. In the second Yb site, Yb(2) is bonded to one O(1), two equivalent O(2), and three equivalent O(4) atoms to form a mixture of distorted edge and corner-sharing YbO6 octahedra. The corner-sharing octahedral tilt angles range from 49-73°. Eu(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Yb(2), two equivalent Yb(1), and two equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing OYb3Eu2 trigonal bipyramids. In the second O site, O(2) is bonded to one Yb(1), two equivalent Yb(2), and two equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing OYb3Eu2 trigonal bipyramids. In the third O site, O(3) is bonded to three equivalent Yb(1) and two equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing OYb3Eu2 square pyramids. In the fourth O site, O(4) is bonded to three equivalent Yb(2) and two equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing OYb3Eu2 trigonal bipyramids. is represented by the CIF card [CIF]
data_Yb2EuO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.345
_cell_length_b   9.702
_cell_length_c   11.792
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   382.758
_cell_formula_units_Z   4
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
  Yb  Yb0  1  0.750  0.918  0.606  1.0
  Yb  Yb1  1  0.250  0.082  0.394  1.0
  Yb  Yb2  1  0.250  0.582  0.106  1.0
  Yb  Yb3  1  0.750  0.418  0.894  1.0
  Yb  Yb4  1  0.750  0.423  0.392  1.0
  Yb  Yb5  1  0.250  0.577  0.608  1.0
  Yb  Yb6  1  0.250  0.077  0.892  1.0
  Yb  Yb7  1  0.750  0.923  0.108  1.0
  Eu  Eu8  1  0.750  0.753  0.338  1.0
  Eu  Eu9  1  0.250  0.247  0.662  1.0
  Eu  Eu10  1  0.250  0.747  0.838  1.0
  Eu  Eu11  1  0.750  0.253  0.162  1.0
  O  O12  1  0.750  0.524  0.221  1.0
  O  O13  1  0.250  0.476  0.779  1.0
  O  O14  1  0.250  0.976  0.721  1.0
  O  O15  1  0.750  0.024  0.279  1.0
  O  O16  1  0.750  0.711  0.694  1.0
  O  O17  1  0.250  0.289  0.306  1.0
  O  O18  1  0.250  0.789  0.194  1.0
  O  O19  1  0.750  0.211  0.806  1.0
  O  O20  1  0.750  0.638  0.965  1.0
  O  O21  1  0.250  0.362  0.035  1.0
  O  O22  1  0.250  0.862  0.465  1.0
  O  O23  1  0.750  0.138  0.535  1.0
  O  O24  1  0.750  0.909  0.914  1.0
  O  O25  1  0.250  0.091  0.086  1.0
  O  O26  1  0.250  0.591  0.414  1.0
  O  O27  1  0.750  0.409  0.586  1.0
[/CIF]
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