The material structure described by La3SbO7 crystallizes in the orthorhombic Pnma space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms. In the second La site, La(2) is bonded to one O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted LaO7 pentagonal bipyramids that share corners with two equivalent Sb(1)O6 octahedra, corners with three equivalent La(2)O7 pentagonal bipyramids, edges with two equivalent Sb(1)O6 octahedra, and edges with two equivalent La(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 36-40°. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra, corners with four equivalent La(2)O7 pentagonal bipyramids, and edges with four equivalent La(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 35°. There are four inequivalent O sites. In the first O site, O(4) is bonded to one La(1), two equivalent La(2), and one Sb(1) atom to form distorted OLa3Sb trigonal pyramids that share corners with four equivalent O(3)La4 tetrahedra, edges with two equivalent O(3)La4 tetrahedra, and edges with two equivalent O(4)La3Sb trigonal pyramids. In the second O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(2) and two equivalent Sb(1) atoms. In the third O site, O(2) is bonded in a 4-coordinate geometry to one La(1), two equivalent La(2), and one Sb(1) atom. In the fourth O site, O(3) is bonded to two equivalent La(1) and two equivalent La(2) atoms to form OLa4 tetrahedra that share corners with six equivalent O(3)La4 tetrahedra, corners with four equivalent O(4)La3Sb trigonal pyramids,  an edgeedge with one O(3)La4 tetrahedra, and edges with two equivalent O(4)La3Sb trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_La3SbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.718
_cell_length_b   7.810
_cell_length_c   11.211
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   675.737
_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
  La  La0  1  0.766  0.498  0.250  1.0
  La  La1  1  0.234  0.502  0.750  1.0
  La  La2  1  0.266  0.002  0.750  1.0
  La  La3  1  0.734  0.998  0.250  1.0
  La  La4  1  0.455  0.253  0.022  1.0
  La  La5  1  0.545  0.747  0.978  1.0
  La  La6  1  0.955  0.247  0.978  1.0
  La  La7  1  0.545  0.747  0.522  1.0
  La  La8  1  0.045  0.753  0.022  1.0
  La  La9  1  0.455  0.253  0.478  1.0
  La  La10  1  0.045  0.753  0.478  1.0
  La  La11  1  0.955  0.247  0.522  1.0
  Sb  Sb12  1  0.252  0.002  0.250  1.0
  Sb  Sb13  1  0.748  0.998  0.750  1.0
  Sb  Sb14  1  0.752  0.498  0.750  1.0
  Sb  Sb15  1  0.248  0.502  0.250  1.0
  O  O16  1  0.329  0.253  0.250  1.0
  O  O17  1  0.671  0.747  0.750  1.0
  O  O18  1  0.829  0.247  0.750  1.0
  O  O19  1  0.171  0.753  0.250  1.0
  O  O20  1  0.074  0.037  0.122  1.0
  O  O21  1  0.926  0.963  0.878  1.0
  O  O22  1  0.574  0.463  0.878  1.0
  O  O23  1  0.926  0.963  0.622  1.0
  O  O24  1  0.426  0.537  0.122  1.0
  O  O25  1  0.074  0.037  0.378  1.0
  O  O26  1  0.426  0.537  0.378  1.0
  O  O27  1  0.574  0.463  0.622  1.0
  O  O28  1  0.226  0.250  0.619  1.0
  O  O29  1  0.774  0.750  0.381  1.0
  O  O30  1  0.726  0.250  0.381  1.0
  O  O31  1  0.774  0.750  0.119  1.0
  O  O32  1  0.274  0.750  0.619  1.0
  O  O33  1  0.226  0.250  0.881  1.0
  O  O34  1  0.274  0.750  0.881  1.0
  O  O35  1  0.726  0.250  0.119  1.0
  O  O36  1  0.060  0.468  0.127  1.0
  O  O37  1  0.940  0.532  0.873  1.0
  O  O38  1  0.560  0.032  0.873  1.0
  O  O39  1  0.940  0.532  0.627  1.0
  O  O40  1  0.440  0.968  0.127  1.0
  O  O41  1  0.060  0.468  0.373  1.0
  O  O42  1  0.440  0.968  0.373  1.0
  O  O43  1  0.560  0.032  0.627  1.0
[/CIF]
.
The material structure described by La3SbO7 crystallizes in the orthorhombic Pnma space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms. In the second La site, La(2) is bonded to one O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted LaO7 pentagonal bipyramids that share corners with two equivalent Sb(1)O6 octahedra, corners with three equivalent La(2)O7 pentagonal bipyramids, edges with two equivalent Sb(1)O6 octahedra, and edges with two equivalent La(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 36-40°. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra, corners with four equivalent La(2)O7 pentagonal bipyramids, and edges with four equivalent La(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 35°. There are four inequivalent O sites. In the first O site, O(4) is bonded to one La(1), two equivalent La(2), and one Sb(1) atom to form distorted OLa3Sb trigonal pyramids that share corners with four equivalent O(3)La4 tetrahedra, edges with two equivalent O(3)La4 tetrahedra, and edges with two equivalent O(4)La3Sb trigonal pyramids. In the second O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(2) and two equivalent Sb(1) atoms. In the third O site, O(2) is bonded in a 4-coordinate geometry to one La(1), two equivalent La(2), and one Sb(1) atom. In the fourth O site, O(3) is bonded to two equivalent La(1) and two equivalent La(2) atoms to form OLa4 tetrahedra that share corners with six equivalent O(3)La4 tetrahedra, corners with four equivalent O(4)La3Sb trigonal pyramids,  an edgeedge with one O(3)La4 tetrahedra, and edges with two equivalent O(4)La3Sb trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_La3SbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.718
_cell_length_b   7.810
_cell_length_c   11.211
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   675.737
_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
  La  La0  1  0.766  0.498  0.250  1.0
  La  La1  1  0.234  0.502  0.750  1.0
  La  La2  1  0.266  0.002  0.750  1.0
  La  La3  1  0.734  0.998  0.250  1.0
  La  La4  1  0.455  0.253  0.022  1.0
  La  La5  1  0.545  0.747  0.978  1.0
  La  La6  1  0.955  0.247  0.978  1.0
  La  La7  1  0.545  0.747  0.522  1.0
  La  La8  1  0.045  0.753  0.022  1.0
  La  La9  1  0.455  0.253  0.478  1.0
  La  La10  1  0.045  0.753  0.478  1.0
  La  La11  1  0.955  0.247  0.522  1.0
  Sb  Sb12  1  0.252  0.002  0.250  1.0
  Sb  Sb13  1  0.748  0.998  0.750  1.0
  Sb  Sb14  1  0.752  0.498  0.750  1.0
  Sb  Sb15  1  0.248  0.502  0.250  1.0
  O  O16  1  0.329  0.253  0.250  1.0
  O  O17  1  0.671  0.747  0.750  1.0
  O  O18  1  0.829  0.247  0.750  1.0
  O  O19  1  0.171  0.753  0.250  1.0
  O  O20  1  0.074  0.037  0.122  1.0
  O  O21  1  0.926  0.963  0.878  1.0
  O  O22  1  0.574  0.463  0.878  1.0
  O  O23  1  0.926  0.963  0.622  1.0
  O  O24  1  0.426  0.537  0.122  1.0
  O  O25  1  0.074  0.037  0.378  1.0
  O  O26  1  0.426  0.537  0.378  1.0
  O  O27  1  0.574  0.463  0.622  1.0
  O  O28  1  0.226  0.250  0.619  1.0
  O  O29  1  0.774  0.750  0.381  1.0
  O  O30  1  0.726  0.250  0.381  1.0
  O  O31  1  0.774  0.750  0.119  1.0
  O  O32  1  0.274  0.750  0.619  1.0
  O  O33  1  0.226  0.250  0.881  1.0
  O  O34  1  0.274  0.750  0.881  1.0
  O  O35  1  0.726  0.250  0.119  1.0
  O  O36  1  0.060  0.468  0.127  1.0
  O  O37  1  0.940  0.532  0.873  1.0
  O  O38  1  0.560  0.032  0.873  1.0
  O  O39  1  0.940  0.532  0.627  1.0
  O  O40  1  0.440  0.968  0.127  1.0
  O  O41  1  0.060  0.468  0.373  1.0
  O  O42  1  0.440  0.968  0.373  1.0
  O  O43  1  0.560  0.032  0.627  1.0
[/CIF]
.