The structure described by Dy2CrSbO7 crystallizes in the orthorhombic Imma space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent O(2), 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 two equivalent Cr(1)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. In the second Dy site, Dy(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(4), and four equivalent O(3) atoms. Cr(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form CrO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra, and edges with two equivalent Dy(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 51-54°. Sb(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra, corners with four equivalent Cr(1)O6 octahedra, and edges with four equivalent Dy(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 49-51°. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Dy(2) and two equivalent Cr(1) atoms to form distorted ODy2Cr2 tetrahedra that share corners with two equivalent O(4)Dy4 tetrahedra, corners with four equivalent O(1)Dy2Cr2 tetrahedra, corners with eight equivalent O(3)Dy2CrSb tetrahedra,  an edgeedge with one O(4)Dy4 tetrahedra, and edges with four equivalent O(3)Dy2CrSb tetrahedra. In the second O site, O(2) is bonded to two equivalent Dy(1) and two equivalent Sb(1) atoms to form distorted ODy2Sb2 tetrahedra that share corners with two equivalent O(4)Dy4 tetrahedra, corners with four equivalent O(2)Dy2Sb2 tetrahedra, corners with eight equivalent O(3)Dy2CrSb tetrahedra,  an edgeedge with one O(4)Dy4 tetrahedra, and edges with four equivalent O(3)Dy2CrSb tetrahedra. In the third O site, O(3) is bonded to one Dy(1), one Dy(2), one Cr(1), and one Sb(1) atom to form distorted ODy2CrSb tetrahedra that share corners with two equivalent O(1)Dy2Cr2 tetrahedra, corners with two equivalent O(2)Dy2Sb2 tetrahedra, corners with two equivalent O(4)Dy4 tetrahedra, corners with eight equivalent O(3)Dy2CrSb tetrahedra,  an edgeedge with one O(1)Dy2Cr2 tetrahedra,  an edgeedge with one O(2)Dy2Sb2 tetrahedra,  an edgeedge with one O(4)Dy4 tetrahedra, and edges with two equivalent O(3)Dy2CrSb tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Dy(1) and two equivalent Dy(2) atoms to form ODy4 tetrahedra that share corners with two equivalent O(1)Dy2Cr2 tetrahedra, corners with two equivalent O(2)Dy2Sb2 tetrahedra, corners with four equivalent O(4)Dy4 tetrahedra, corners with eight equivalent O(3)Dy2CrSb tetrahedra,  an edgeedge with one O(1)Dy2Cr2 tetrahedra,  an edgeedge with one O(2)Dy2Sb2 tetrahedra, and edges with four equivalent O(3)Dy2CrSb tetrahedra. is represented by the CIF file [CIF]
data_Dy2CrSbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.283
_cell_length_b   7.283
_cell_length_c   7.283
_cell_angle_alpha   120.197
_cell_angle_beta   119.528
_cell_angle_gamma   90.239
_symmetry_Int_Tables_number   1
_cell_volume   273.674
_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  0.500  0.000  0.000  1.0
  Dy  Dy1  1  0.500  0.500  0.500  1.0
  Dy  Dy2  1  0.500  0.000  0.500  1.0
  Dy  Dy3  1  0.000  0.000  0.000  1.0
  Cr  Cr4  1  0.000  0.500  0.000  1.0
  Cr  Cr5  1  0.000  0.000  0.500  1.0
  Sb  Sb6  1  0.000  0.500  0.500  1.0
  Sb  Sb7  1  0.500  0.500  0.000  1.0
  O  O8  1  0.910  0.160  0.750  1.0
  O  O9  1  0.332  0.582  0.750  1.0
  O  O10  1  0.911  0.580  0.743  1.0
  O  O11  1  0.337  0.168  0.757  1.0
  O  O12  1  0.911  0.168  0.332  1.0
  O  O13  1  0.337  0.580  0.168  1.0
  O  O14  1  0.090  0.840  0.250  1.0
  O  O15  1  0.668  0.418  0.250  1.0
  O  O16  1  0.089  0.420  0.257  1.0
  O  O17  1  0.663  0.832  0.243  1.0
  O  O18  1  0.089  0.832  0.668  1.0
  O  O19  1  0.663  0.420  0.832  1.0
  O  O20  1  0.622  0.872  0.750  1.0
  O  O21  1  0.378  0.128  0.250  1.0
[/CIF]
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The structure described by Dy2CrSbO7 crystallizes in the orthorhombic Imma space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent O(2), 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 two equivalent Cr(1)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. In the second Dy site, Dy(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(4), and four equivalent O(3) atoms. Cr(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form CrO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra, and edges with two equivalent Dy(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 51-54°. Sb(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra, corners with four equivalent Cr(1)O6 octahedra, and edges with four equivalent Dy(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 49-51°. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Dy(2) and two equivalent Cr(1) atoms to form distorted ODy2Cr2 tetrahedra that share corners with two equivalent O(4)Dy4 tetrahedra, corners with four equivalent O(1)Dy2Cr2 tetrahedra, corners with eight equivalent O(3)Dy2CrSb tetrahedra,  an edgeedge with one O(4)Dy4 tetrahedra, and edges with four equivalent O(3)Dy2CrSb tetrahedra. In the second O site, O(2) is bonded to two equivalent Dy(1) and two equivalent Sb(1) atoms to form distorted ODy2Sb2 tetrahedra that share corners with two equivalent O(4)Dy4 tetrahedra, corners with four equivalent O(2)Dy2Sb2 tetrahedra, corners with eight equivalent O(3)Dy2CrSb tetrahedra,  an edgeedge with one O(4)Dy4 tetrahedra, and edges with four equivalent O(3)Dy2CrSb tetrahedra. In the third O site, O(3) is bonded to one Dy(1), one Dy(2), one Cr(1), and one Sb(1) atom to form distorted ODy2CrSb tetrahedra that share corners with two equivalent O(1)Dy2Cr2 tetrahedra, corners with two equivalent O(2)Dy2Sb2 tetrahedra, corners with two equivalent O(4)Dy4 tetrahedra, corners with eight equivalent O(3)Dy2CrSb tetrahedra,  an edgeedge with one O(1)Dy2Cr2 tetrahedra,  an edgeedge with one O(2)Dy2Sb2 tetrahedra,  an edgeedge with one O(4)Dy4 tetrahedra, and edges with two equivalent O(3)Dy2CrSb tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Dy(1) and two equivalent Dy(2) atoms to form ODy4 tetrahedra that share corners with two equivalent O(1)Dy2Cr2 tetrahedra, corners with two equivalent O(2)Dy2Sb2 tetrahedra, corners with four equivalent O(4)Dy4 tetrahedra, corners with eight equivalent O(3)Dy2CrSb tetrahedra,  an edgeedge with one O(1)Dy2Cr2 tetrahedra,  an edgeedge with one O(2)Dy2Sb2 tetrahedra, and edges with four equivalent O(3)Dy2CrSb tetrahedra. is represented by the CIF file [CIF]
data_Dy2CrSbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.283
_cell_length_b   7.283
_cell_length_c   7.283
_cell_angle_alpha   120.197
_cell_angle_beta   119.528
_cell_angle_gamma   90.239
_symmetry_Int_Tables_number   1
_cell_volume   273.674
_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  0.500  0.000  0.000  1.0
  Dy  Dy1  1  0.500  0.500  0.500  1.0
  Dy  Dy2  1  0.500  0.000  0.500  1.0
  Dy  Dy3  1  0.000  0.000  0.000  1.0
  Cr  Cr4  1  0.000  0.500  0.000  1.0
  Cr  Cr5  1  0.000  0.000  0.500  1.0
  Sb  Sb6  1  0.000  0.500  0.500  1.0
  Sb  Sb7  1  0.500  0.500  0.000  1.0
  O  O8  1  0.910  0.160  0.750  1.0
  O  O9  1  0.332  0.582  0.750  1.0
  O  O10  1  0.911  0.580  0.743  1.0
  O  O11  1  0.337  0.168  0.757  1.0
  O  O12  1  0.911  0.168  0.332  1.0
  O  O13  1  0.337  0.580  0.168  1.0
  O  O14  1  0.090  0.840  0.250  1.0
  O  O15  1  0.668  0.418  0.250  1.0
  O  O16  1  0.089  0.420  0.257  1.0
  O  O17  1  0.663  0.832  0.243  1.0
  O  O18  1  0.089  0.832  0.668  1.0
  O  O19  1  0.663  0.420  0.832  1.0
  O  O20  1  0.622  0.872  0.750  1.0
  O  O21  1  0.378  0.128  0.250  1.0
[/CIF]
.