The compound described by YbEu(FeO2)4 is Aluminum carbonitride-derived structured and crystallizes in the monoclinic P2/m space group. Yb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form YbO6 octahedra that share corners with two equivalent Fe(1)O5 trigonal bipyramids, corners with four equivalent Fe(2)O5 trigonal bipyramids, edges with two equivalent Yb(1)O6 octahedra, and edges with four equivalent Eu(1)O6 octahedra. Eu(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form EuO6 octahedra that share corners with two equivalent Fe(2)O5 trigonal bipyramids, corners with four equivalent Fe(1)O5 trigonal bipyramids, edges with two equivalent Eu(1)O6 octahedra, and edges with four equivalent Yb(1)O6 octahedra. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), two equivalent O(3), and two equivalent O(4) atoms to form FeO5 trigonal bipyramids that share  a cornercorner with one Yb(1)O6 octahedra, corners with two equivalent Eu(1)O6 octahedra, corners with two equivalent Fe(1)O5 trigonal bipyramids, corners with four equivalent Fe(2)O5 trigonal bipyramids,  an edgeedge with one Fe(1)O5 trigonal bipyramid, and edges with two equivalent Fe(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 58-60°. In the second Fe site, Fe(2) is bonded to one O(2), two equivalent O(3), and two equivalent O(4) atoms to form FeO5 trigonal bipyramids that share  a cornercorner with one Eu(1)O6 octahedra, corners with two equivalent Yb(1)O6 octahedra, corners with two equivalent Fe(2)O5 trigonal bipyramids, corners with four equivalent Fe(1)O5 trigonal bipyramids,  an edgeedge with one Fe(2)O5 trigonal bipyramid, and edges with two equivalent Fe(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 59-61°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Yb(1), two equivalent Eu(1), and one Fe(1) atom to form distorted OYbEu2Fe tetrahedra that share corners with four equivalent O(2)Yb2EuFe tetrahedra, corners with five equivalent O(1)YbEu2Fe tetrahedra, corners with two equivalent O(3)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(1)YbEu2Fe tetrahedra, and edges with two equivalent O(2)Yb2EuFe tetrahedra. In the second O site, O(2) is bonded to two equivalent Yb(1), one Eu(1), and one Fe(2) atom to form distorted OYb2EuFe tetrahedra that share corners with four equivalent O(1)YbEu2Fe tetrahedra, corners with five equivalent O(2)Yb2EuFe tetrahedra, corners with two equivalent O(3)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(2)Yb2EuFe tetrahedra, and edges with two equivalent O(1)YbEu2Fe tetrahedra. In the third O site, O(3) is bonded to two equivalent Fe(1) and two equivalent Fe(2) atoms to form OFe4 trigonal pyramids that share corners with two equivalent O(2)Yb2EuFe tetrahedra, corners with two equivalent O(1)YbEu2Fe tetrahedra, corners with two equivalent O(3)Fe4 trigonal pyramids, corners with four equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(3)Fe4 trigonal pyramid, and edges with two equivalent O(4)Fe4 trigonal pyramids. In the fourth O site, O(4) is bonded to two equivalent Fe(1) and two equivalent Fe(2) atoms to form OFe4 trigonal pyramids that share corners with two equivalent O(2)Yb2EuFe tetrahedra, corners with two equivalent O(1)YbEu2Fe tetrahedra, corners with two equivalent O(4)Fe4 trigonal pyramids, corners with four equivalent O(3)Fe4 trigonal pyramids,  an edgeedge with one O(4)Fe4 trigonal pyramid, and edges with two equivalent O(3)Fe4 trigonal pyramids. is represented by the CIF card [CIF]
data_YbEu(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.525
_cell_length_b   8.766
_cell_length_c   6.082
_cell_angle_alpha   76.695
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   182.853
_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
  Yb  Yb0  1  0.500  0.000  0.500  1.0
  Eu  Eu1  1  0.000  0.000  0.000  1.0
  Fe  Fe2  1  0.500  0.357  0.713  1.0
  Fe  Fe3  1  0.000  0.354  0.217  1.0
  Fe  Fe4  1  0.500  0.643  0.287  1.0
  Fe  Fe5  1  0.000  0.646  0.783  1.0
  O  O6  1  0.500  0.139  0.781  1.0
  O  O7  1  0.000  0.137  0.294  1.0
  O  O8  1  0.500  0.861  0.219  1.0
  O  O9  1  0.000  0.863  0.706  1.0
  O  O10  1  0.500  0.606  0.633  1.0
  O  O11  1  0.000  0.608  0.131  1.0
  O  O12  1  0.500  0.394  0.367  1.0
  O  O13  1  0.000  0.392  0.869  1.0
[/CIF]
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The compound described by YbEu(FeO2)4 is Aluminum carbonitride-derived structured and crystallizes in the monoclinic P2/m space group. Yb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form YbO6 octahedra that share corners with two equivalent Fe(1)O5 trigonal bipyramids, corners with four equivalent Fe(2)O5 trigonal bipyramids, edges with two equivalent Yb(1)O6 octahedra, and edges with four equivalent Eu(1)O6 octahedra. Eu(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form EuO6 octahedra that share corners with two equivalent Fe(2)O5 trigonal bipyramids, corners with four equivalent Fe(1)O5 trigonal bipyramids, edges with two equivalent Eu(1)O6 octahedra, and edges with four equivalent Yb(1)O6 octahedra. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), two equivalent O(3), and two equivalent O(4) atoms to form FeO5 trigonal bipyramids that share  a cornercorner with one Yb(1)O6 octahedra, corners with two equivalent Eu(1)O6 octahedra, corners with two equivalent Fe(1)O5 trigonal bipyramids, corners with four equivalent Fe(2)O5 trigonal bipyramids,  an edgeedge with one Fe(1)O5 trigonal bipyramid, and edges with two equivalent Fe(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 58-60°. In the second Fe site, Fe(2) is bonded to one O(2), two equivalent O(3), and two equivalent O(4) atoms to form FeO5 trigonal bipyramids that share  a cornercorner with one Eu(1)O6 octahedra, corners with two equivalent Yb(1)O6 octahedra, corners with two equivalent Fe(2)O5 trigonal bipyramids, corners with four equivalent Fe(1)O5 trigonal bipyramids,  an edgeedge with one Fe(2)O5 trigonal bipyramid, and edges with two equivalent Fe(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 59-61°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Yb(1), two equivalent Eu(1), and one Fe(1) atom to form distorted OYbEu2Fe tetrahedra that share corners with four equivalent O(2)Yb2EuFe tetrahedra, corners with five equivalent O(1)YbEu2Fe tetrahedra, corners with two equivalent O(3)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(1)YbEu2Fe tetrahedra, and edges with two equivalent O(2)Yb2EuFe tetrahedra. In the second O site, O(2) is bonded to two equivalent Yb(1), one Eu(1), and one Fe(2) atom to form distorted OYb2EuFe tetrahedra that share corners with four equivalent O(1)YbEu2Fe tetrahedra, corners with five equivalent O(2)Yb2EuFe tetrahedra, corners with two equivalent O(3)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(2)Yb2EuFe tetrahedra, and edges with two equivalent O(1)YbEu2Fe tetrahedra. In the third O site, O(3) is bonded to two equivalent Fe(1) and two equivalent Fe(2) atoms to form OFe4 trigonal pyramids that share corners with two equivalent O(2)Yb2EuFe tetrahedra, corners with two equivalent O(1)YbEu2Fe tetrahedra, corners with two equivalent O(3)Fe4 trigonal pyramids, corners with four equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(3)Fe4 trigonal pyramid, and edges with two equivalent O(4)Fe4 trigonal pyramids. In the fourth O site, O(4) is bonded to two equivalent Fe(1) and two equivalent Fe(2) atoms to form OFe4 trigonal pyramids that share corners with two equivalent O(2)Yb2EuFe tetrahedra, corners with two equivalent O(1)YbEu2Fe tetrahedra, corners with two equivalent O(4)Fe4 trigonal pyramids, corners with four equivalent O(3)Fe4 trigonal pyramids,  an edgeedge with one O(4)Fe4 trigonal pyramid, and edges with two equivalent O(3)Fe4 trigonal pyramids. is represented by the CIF card [CIF]
data_YbEu(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.525
_cell_length_b   8.766
_cell_length_c   6.082
_cell_angle_alpha   76.695
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   182.853
_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
  Yb  Yb0  1  0.500  0.000  0.500  1.0
  Eu  Eu1  1  0.000  0.000  0.000  1.0
  Fe  Fe2  1  0.500  0.357  0.713  1.0
  Fe  Fe3  1  0.000  0.354  0.217  1.0
  Fe  Fe4  1  0.500  0.643  0.287  1.0
  Fe  Fe5  1  0.000  0.646  0.783  1.0
  O  O6  1  0.500  0.139  0.781  1.0
  O  O7  1  0.000  0.137  0.294  1.0
  O  O8  1  0.500  0.861  0.219  1.0
  O  O9  1  0.000  0.863  0.706  1.0
  O  O10  1  0.500  0.606  0.633  1.0
  O  O11  1  0.000  0.608  0.131  1.0
  O  O12  1  0.500  0.394  0.367  1.0
  O  O13  1  0.000  0.392  0.869  1.0
[/CIF]
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