The structure described by Nd3SbO7 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a body-centered cubic geometry to two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. In the second Nd site, Nd(2) is bonded to one O(2), one O(3), one O(4), and four equivalent O(1) atoms to form distorted NdO7 pentagonal bipyramids that share corners with two equivalent Sb(1)O6 octahedra,  a cornercorner with one Nd(2)O7 pentagonal bipyramid, edges with two equivalent Sb(1)O6 octahedra, and edges with three equivalent Nd(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 46°. Sb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra, corners with four equivalent Nd(2)O7 pentagonal bipyramids, and edges with four equivalent Nd(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 38°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Nd(1), two equivalent Nd(2), and one Sb(1) atom. In the second O site, O(2) is bonded to two equivalent Nd(2) and two equivalent Sb(1) atoms to form distorted ONd2Sb2 trigonal pyramids that share corners with two equivalent O(3)Nd4 tetrahedra, corners with two equivalent O(2)Nd2Sb2 trigonal pyramids, and  an edgeedge with one O(4)Nd4 tetrahedra. In the third O site, O(3) is bonded to two equivalent Nd(1) and two equivalent Nd(2) atoms to form ONd4 tetrahedra that share corners with two equivalent O(3)Nd4 tetrahedra, corners with four equivalent O(4)Nd4 tetrahedra, corners with two equivalent O(2)Nd2Sb2 trigonal pyramids, and  an edgeedge with one O(4)Nd4 tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Nd(1) and two equivalent Nd(2) atoms to form ONd4 tetrahedra that share corners with two equivalent O(4)Nd4 tetrahedra, corners with four equivalent O(3)Nd4 tetrahedra,  an edgeedge with one O(3)Nd4 tetrahedra, and  an edgeedge with one O(2)Nd2Sb2 trigonal pyramid. is represented by the CIF card [CIF]
data_Nd3SbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.652
_cell_length_b   6.652
_cell_length_c   7.703
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   109.742
_symmetry_Int_Tables_number   1
_cell_volume   320.799
_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
  Nd  Nd0  1  0.500  0.500  0.500  1.0
  Nd  Nd1  1  0.500  0.500  0.000  1.0
  Nd  Nd2  1  0.533  0.999  0.750  1.0
  Nd  Nd3  1  0.999  0.533  0.250  1.0
  Nd  Nd4  1  0.467  0.001  0.250  1.0
  Nd  Nd5  1  0.001  0.467  0.750  1.0
  Sb  Sb6  1  0.000  0.000  0.500  1.0
  Sb  Sb7  1  0.000  0.000  0.000  1.0
  O  O8  1  0.688  0.931  0.472  1.0
  O  O9  1  0.931  0.688  0.528  1.0
  O  O10  1  0.688  0.931  0.028  1.0
  O  O11  1  0.931  0.688  0.972  1.0
  O  O12  1  0.312  0.069  0.528  1.0
  O  O13  1  0.069  0.312  0.472  1.0
  O  O14  1  0.312  0.069  0.972  1.0
  O  O15  1  0.069  0.312  0.028  1.0
  O  O16  1  0.939  0.061  0.750  1.0
  O  O17  1  0.061  0.939  0.250  1.0
  O  O18  1  0.370  0.630  0.750  1.0
  O  O19  1  0.630  0.370  0.250  1.0
  O  O20  1  0.634  0.366  0.750  1.0
  O  O21  1  0.366  0.634  0.250  1.0
[/CIF]
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The structure described by Nd3SbO7 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a body-centered cubic geometry to two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. In the second Nd site, Nd(2) is bonded to one O(2), one O(3), one O(4), and four equivalent O(1) atoms to form distorted NdO7 pentagonal bipyramids that share corners with two equivalent Sb(1)O6 octahedra,  a cornercorner with one Nd(2)O7 pentagonal bipyramid, edges with two equivalent Sb(1)O6 octahedra, and edges with three equivalent Nd(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 46°. Sb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra, corners with four equivalent Nd(2)O7 pentagonal bipyramids, and edges with four equivalent Nd(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 38°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Nd(1), two equivalent Nd(2), and one Sb(1) atom. In the second O site, O(2) is bonded to two equivalent Nd(2) and two equivalent Sb(1) atoms to form distorted ONd2Sb2 trigonal pyramids that share corners with two equivalent O(3)Nd4 tetrahedra, corners with two equivalent O(2)Nd2Sb2 trigonal pyramids, and  an edgeedge with one O(4)Nd4 tetrahedra. In the third O site, O(3) is bonded to two equivalent Nd(1) and two equivalent Nd(2) atoms to form ONd4 tetrahedra that share corners with two equivalent O(3)Nd4 tetrahedra, corners with four equivalent O(4)Nd4 tetrahedra, corners with two equivalent O(2)Nd2Sb2 trigonal pyramids, and  an edgeedge with one O(4)Nd4 tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Nd(1) and two equivalent Nd(2) atoms to form ONd4 tetrahedra that share corners with two equivalent O(4)Nd4 tetrahedra, corners with four equivalent O(3)Nd4 tetrahedra,  an edgeedge with one O(3)Nd4 tetrahedra, and  an edgeedge with one O(2)Nd2Sb2 trigonal pyramid. is represented by the CIF card [CIF]
data_Nd3SbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.652
_cell_length_b   6.652
_cell_length_c   7.703
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   109.742
_symmetry_Int_Tables_number   1
_cell_volume   320.799
_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
  Nd  Nd0  1  0.500  0.500  0.500  1.0
  Nd  Nd1  1  0.500  0.500  0.000  1.0
  Nd  Nd2  1  0.533  0.999  0.750  1.0
  Nd  Nd3  1  0.999  0.533  0.250  1.0
  Nd  Nd4  1  0.467  0.001  0.250  1.0
  Nd  Nd5  1  0.001  0.467  0.750  1.0
  Sb  Sb6  1  0.000  0.000  0.500  1.0
  Sb  Sb7  1  0.000  0.000  0.000  1.0
  O  O8  1  0.688  0.931  0.472  1.0
  O  O9  1  0.931  0.688  0.528  1.0
  O  O10  1  0.688  0.931  0.028  1.0
  O  O11  1  0.931  0.688  0.972  1.0
  O  O12  1  0.312  0.069  0.528  1.0
  O  O13  1  0.069  0.312  0.472  1.0
  O  O14  1  0.312  0.069  0.972  1.0
  O  O15  1  0.069  0.312  0.028  1.0
  O  O16  1  0.939  0.061  0.750  1.0
  O  O17  1  0.061  0.939  0.250  1.0
  O  O18  1  0.370  0.630  0.750  1.0
  O  O19  1  0.630  0.370  0.250  1.0
  O  O20  1  0.634  0.366  0.750  1.0
  O  O21  1  0.366  0.634  0.250  1.0
[/CIF]
.