The compound described by Dy2MoFeO7 crystallizes in the monoclinic C2/m space group. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms. In the second Dy site, Dy(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(4) atoms. In the third Dy site, Dy(3) is bonded to two equivalent O(5) and four equivalent O(4) atoms to form distorted DyO6 octahedra that share corners with two equivalent Mo(1)O6 octahedra and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-62°. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to two equivalent O(5) and four equivalent O(2) atoms to form MoO6 octahedra that share corners with two equivalent Dy(3)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, and edges with two equivalent Mo(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 50-60°. In the second Mo site, Mo(2) is bonded to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms to form MoO8 hexagonal bipyramids that share edges with two equivalent Mo(1)O6 octahedra and edges with four equivalent Fe(1)O6 octahedra. Fe(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form FeO6 octahedra that share corners with two equivalent Dy(3)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, and edges with two equivalent Mo(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 50-62°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Dy(2), two equivalent Dy(1), and one Mo(2) atom to form ODy3Mo tetrahedra that share corners with two equivalent O(5)Dy3Mo tetrahedra, corners with four equivalent O(4)Dy3Fe tetrahedra, corners with four equivalent O(1)Dy3Mo tetrahedra, corners with two equivalent O(3)DyFe2Mo trigonal pyramids, corners with four equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(5)Dy3Mo tetrahedra, edges with two equivalent O(4)Dy3Fe tetrahedra,  an edgeedge with one O(3)DyFe2Mo trigonal pyramid, and edges with two equivalent O(2)DyFeMo2 trigonal pyramids. In the second O site, O(2) is bonded to one Dy(1), one Mo(1), one Mo(2), and one Fe(1) atom to form distorted ODyFeMo2 trigonal pyramids that share corners with two equivalent O(4)Dy3Fe tetrahedra, corners with two equivalent O(1)Dy3Mo tetrahedra, corners with two equivalent O(5)Dy3Mo tetrahedra, corners with two equivalent O(3)DyFe2Mo trigonal pyramids, corners with six equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(4)Dy3Fe tetrahedra,  an edgeedge with one O(1)Dy3Mo tetrahedra,  an edgeedge with one O(5)Dy3Mo tetrahedra,  an edgeedge with one O(3)DyFe2Mo trigonal pyramid, and  an edgeedge with one O(2)DyFeMo2 trigonal pyramid. In the third O site, O(3) is bonded to one Dy(2), one Mo(2), and two equivalent Fe(1) atoms to form distorted ODyFe2Mo trigonal pyramids that share corners with two equivalent O(1)Dy3Mo tetrahedra, corners with four equivalent O(4)Dy3Fe tetrahedra, corners with four equivalent O(3)DyFe2Mo trigonal pyramids, corners with four equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(1)Dy3Mo tetrahedra, edges with two equivalent O(4)Dy3Fe tetrahedra, and edges with two equivalent O(2)DyFeMo2 trigonal pyramids. In the fourth O site, O(4) is bonded to one Dy(1), one Dy(2), one Dy(3), and one Fe(1) atom to form ODy3Fe tetrahedra that share corners with two equivalent O(1)Dy3Mo tetrahedra, corners with two equivalent O(5)Dy3Mo tetrahedra, corners with six equivalent O(4)Dy3Fe tetrahedra, corners with two equivalent O(3)DyFe2Mo trigonal pyramids, corners with two equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(4)Dy3Fe tetrahedra,  an edgeedge with one O(1)Dy3Mo tetrahedra,  an edgeedge with one O(5)Dy3Mo tetrahedra,  an edgeedge with one O(3)DyFe2Mo trigonal pyramid, and  an edgeedge with one O(2)DyFeMo2 trigonal pyramid. In the fifth O site, O(5) is bonded to one Dy(3), two equivalent Dy(1), and one Mo(1) atom to form ODy3Mo tetrahedra that share corners with two equivalent O(1)Dy3Mo tetrahedra, corners with four equivalent O(4)Dy3Fe tetrahedra, corners with four equivalent O(5)Dy3Mo tetrahedra, corners with four equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(1)Dy3Mo tetrahedra, edges with two equivalent O(4)Dy3Fe tetrahedra, and edges with two equivalent O(2)DyFeMo2 trigonal pyramids. is represented by the CIF card [CIF]
data_Dy2FeMoO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.252
_cell_length_b   7.252
_cell_length_c   7.297
_cell_angle_alpha   60.396
_cell_angle_beta   60.396
_cell_angle_gamma   59.804
_symmetry_Int_Tables_number   1
_cell_volume   272.569
_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
  Dy  Dy0  1  0.000  0.500  0.000  1.0
  Dy  Dy1  1  0.000  0.000  0.500  1.0
  Dy  Dy2  1  0.500  0.000  0.000  1.0
  Dy  Dy3  1  0.500  0.500  0.500  1.0
  Fe  Fe4  1  0.000  0.500  0.500  1.0
  Fe  Fe5  1  0.500  0.000  0.500  1.0
  Mo  Mo6  1  0.500  0.500  0.000  1.0
  Mo  Mo7  1  0.000  0.000  0.000  1.0
  O  O8  1  0.118  0.118  0.114  1.0
  O  O9  1  0.882  0.882  0.886  1.0
  O  O10  1  0.392  0.829  0.834  1.0
  O  O11  1  0.829  0.392  0.834  1.0
  O  O12  1  0.837  0.837  0.385  1.0
  O  O13  1  0.608  0.171  0.166  1.0
  O  O14  1  0.171  0.608  0.166  1.0
  O  O15  1  0.163  0.163  0.615  1.0
  O  O16  1  0.875  0.398  0.392  1.0
  O  O17  1  0.398  0.875  0.392  1.0
  O  O18  1  0.399  0.399  0.871  1.0
  O  O19  1  0.125  0.602  0.608  1.0
  O  O20  1  0.602  0.125  0.608  1.0
  O  O21  1  0.601  0.601  0.129  1.0
[/CIF]
.
The compound described by Dy2MoFeO7 crystallizes in the monoclinic C2/m space group. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms. In the second Dy site, Dy(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(4) atoms. In the third Dy site, Dy(3) is bonded to two equivalent O(5) and four equivalent O(4) atoms to form distorted DyO6 octahedra that share corners with two equivalent Mo(1)O6 octahedra and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-62°. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to two equivalent O(5) and four equivalent O(2) atoms to form MoO6 octahedra that share corners with two equivalent Dy(3)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, and edges with two equivalent Mo(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 50-60°. In the second Mo site, Mo(2) is bonded to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms to form MoO8 hexagonal bipyramids that share edges with two equivalent Mo(1)O6 octahedra and edges with four equivalent Fe(1)O6 octahedra. Fe(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form FeO6 octahedra that share corners with two equivalent Dy(3)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, and edges with two equivalent Mo(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 50-62°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Dy(2), two equivalent Dy(1), and one Mo(2) atom to form ODy3Mo tetrahedra that share corners with two equivalent O(5)Dy3Mo tetrahedra, corners with four equivalent O(4)Dy3Fe tetrahedra, corners with four equivalent O(1)Dy3Mo tetrahedra, corners with two equivalent O(3)DyFe2Mo trigonal pyramids, corners with four equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(5)Dy3Mo tetrahedra, edges with two equivalent O(4)Dy3Fe tetrahedra,  an edgeedge with one O(3)DyFe2Mo trigonal pyramid, and edges with two equivalent O(2)DyFeMo2 trigonal pyramids. In the second O site, O(2) is bonded to one Dy(1), one Mo(1), one Mo(2), and one Fe(1) atom to form distorted ODyFeMo2 trigonal pyramids that share corners with two equivalent O(4)Dy3Fe tetrahedra, corners with two equivalent O(1)Dy3Mo tetrahedra, corners with two equivalent O(5)Dy3Mo tetrahedra, corners with two equivalent O(3)DyFe2Mo trigonal pyramids, corners with six equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(4)Dy3Fe tetrahedra,  an edgeedge with one O(1)Dy3Mo tetrahedra,  an edgeedge with one O(5)Dy3Mo tetrahedra,  an edgeedge with one O(3)DyFe2Mo trigonal pyramid, and  an edgeedge with one O(2)DyFeMo2 trigonal pyramid. In the third O site, O(3) is bonded to one Dy(2), one Mo(2), and two equivalent Fe(1) atoms to form distorted ODyFe2Mo trigonal pyramids that share corners with two equivalent O(1)Dy3Mo tetrahedra, corners with four equivalent O(4)Dy3Fe tetrahedra, corners with four equivalent O(3)DyFe2Mo trigonal pyramids, corners with four equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(1)Dy3Mo tetrahedra, edges with two equivalent O(4)Dy3Fe tetrahedra, and edges with two equivalent O(2)DyFeMo2 trigonal pyramids. In the fourth O site, O(4) is bonded to one Dy(1), one Dy(2), one Dy(3), and one Fe(1) atom to form ODy3Fe tetrahedra that share corners with two equivalent O(1)Dy3Mo tetrahedra, corners with two equivalent O(5)Dy3Mo tetrahedra, corners with six equivalent O(4)Dy3Fe tetrahedra, corners with two equivalent O(3)DyFe2Mo trigonal pyramids, corners with two equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(4)Dy3Fe tetrahedra,  an edgeedge with one O(1)Dy3Mo tetrahedra,  an edgeedge with one O(5)Dy3Mo tetrahedra,  an edgeedge with one O(3)DyFe2Mo trigonal pyramid, and  an edgeedge with one O(2)DyFeMo2 trigonal pyramid. In the fifth O site, O(5) is bonded to one Dy(3), two equivalent Dy(1), and one Mo(1) atom to form ODy3Mo tetrahedra that share corners with two equivalent O(1)Dy3Mo tetrahedra, corners with four equivalent O(4)Dy3Fe tetrahedra, corners with four equivalent O(5)Dy3Mo tetrahedra, corners with four equivalent O(2)DyFeMo2 trigonal pyramids,  an edgeedge with one O(1)Dy3Mo tetrahedra, edges with two equivalent O(4)Dy3Fe tetrahedra, and edges with two equivalent O(2)DyFeMo2 trigonal pyramids. is represented by the CIF card [CIF]
data_Dy2FeMoO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.252
_cell_length_b   7.252
_cell_length_c   7.297
_cell_angle_alpha   60.396
_cell_angle_beta   60.396
_cell_angle_gamma   59.804
_symmetry_Int_Tables_number   1
_cell_volume   272.569
_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
  Dy  Dy0  1  0.000  0.500  0.000  1.0
  Dy  Dy1  1  0.000  0.000  0.500  1.0
  Dy  Dy2  1  0.500  0.000  0.000  1.0
  Dy  Dy3  1  0.500  0.500  0.500  1.0
  Fe  Fe4  1  0.000  0.500  0.500  1.0
  Fe  Fe5  1  0.500  0.000  0.500  1.0
  Mo  Mo6  1  0.500  0.500  0.000  1.0
  Mo  Mo7  1  0.000  0.000  0.000  1.0
  O  O8  1  0.118  0.118  0.114  1.0
  O  O9  1  0.882  0.882  0.886  1.0
  O  O10  1  0.392  0.829  0.834  1.0
  O  O11  1  0.829  0.392  0.834  1.0
  O  O12  1  0.837  0.837  0.385  1.0
  O  O13  1  0.608  0.171  0.166  1.0
  O  O14  1  0.171  0.608  0.166  1.0
  O  O15  1  0.163  0.163  0.615  1.0
  O  O16  1  0.875  0.398  0.392  1.0
  O  O17  1  0.398  0.875  0.392  1.0
  O  O18  1  0.399  0.399  0.871  1.0
  O  O19  1  0.125  0.602  0.608  1.0
  O  O20  1  0.602  0.125  0.608  1.0
  O  O21  1  0.601  0.601  0.129  1.0
[/CIF]
.