The material structure described by Ca3Nd2Sb3O14 crystallizes in the monoclinic C2/m space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form CaO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-59°. In the second Ca site, Ca(2) is bonded to two equivalent O(1), two equivalent O(5), and four equivalent O(2) atoms to form CaO8 hexagonal bipyramids that share edges with two equivalent Sb(1)O6 octahedra and edges with four equivalent Sb(2)O6 octahedra. In the third Ca site, Ca(3) is bonded in a distorted body-centered cubic geometry to two equivalent O(1), two equivalent O(5), and four equivalent O(3) atoms. Nd(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(4) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra, corners with four equivalent Sb(2)O6 octahedra, and edges with two equivalent Ca(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 42-59°. In the second Sb site, Sb(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms to form SbO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, and edges with two equivalent Ca(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 41-57°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Ca(2), one Ca(3), and two equivalent Nd(1) atoms to form OCa2Nd2 tetrahedra that share corners with two equivalent O(4)CaNd2Sb tetrahedra, corners with four equivalent O(1)Ca2Nd2 tetrahedra, corners with four equivalent O(3)Ca2NdSb tetrahedra,  an edgeedge with one O(4)CaNd2Sb tetrahedra, and edges with two equivalent O(3)Ca2NdSb tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ca(2), one Nd(1), one Sb(1), and one Sb(2) atom. In the third O site, O(3) is bonded to one Ca(1), one Ca(3), one Nd(1), and one Sb(2) atom to form distorted OCa2NdSb tetrahedra that share corners with two equivalent O(1)Ca2Nd2 tetrahedra, corners with two equivalent O(4)CaNd2Sb tetrahedra, corners with six equivalent O(3)Ca2NdSb tetrahedra,  an edgeedge with one O(1)Ca2Nd2 tetrahedra,  an edgeedge with one O(3)Ca2NdSb tetrahedra, and  an edgeedge with one O(4)CaNd2Sb tetrahedra. In the fourth O site, O(4) is bonded to one Ca(1), two equivalent Nd(1), and one Sb(1) atom to form distorted OCaNd2Sb tetrahedra that share corners with two equivalent O(1)Ca2Nd2 tetrahedra, corners with four equivalent O(3)Ca2NdSb tetrahedra, corners with four equivalent O(4)CaNd2Sb tetrahedra,  an edgeedge with one O(1)Ca2Nd2 tetrahedra, and edges with two equivalent O(3)Ca2NdSb tetrahedra. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ca(2), one Ca(3), and two equivalent Sb(2) atoms. is represented by the CIF card [CIF]
data_Ca3Nd2Sb3O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.537
_cell_length_b   7.537
_cell_length_c   7.492
_cell_angle_alpha   60.760
_cell_angle_beta   60.760
_cell_angle_gamma   60.489
_symmetry_Int_Tables_number   1
_cell_volume   305.448
_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
  Ca  Ca0  1  0.000  0.000  0.000  1.0
  Ca  Ca1  1  0.500  0.500  0.500  1.0
  Ca  Ca2  1  0.500  0.500  0.000  1.0
  Nd  Nd3  1  0.500  0.000  0.500  1.0
  Nd  Nd4  1  0.000  0.500  0.500  1.0
  Sb  Sb5  1  0.000  0.000  0.500  1.0
  Sb  Sb6  1  0.500  0.000  0.000  1.0
  Sb  Sb7  1  0.000  0.500  0.000  1.0
  O  O8  1  0.376  0.376  0.380  1.0
  O  O9  1  0.624  0.624  0.620  1.0
  O  O10  1  0.316  0.911  0.317  1.0
  O  O11  1  0.684  0.089  0.683  1.0
  O  O12  1  0.089  0.684  0.683  1.0
  O  O13  1  0.911  0.316  0.317  1.0
  O  O14  1  0.629  0.091  0.099  1.0
  O  O15  1  0.371  0.909  0.901  1.0
  O  O16  1  0.909  0.371  0.901  1.0
  O  O17  1  0.091  0.629  0.099  1.0
  O  O18  1  0.903  0.903  0.371  1.0
  O  O19  1  0.097  0.097  0.629  1.0
  O  O20  1  0.686  0.686  0.088  1.0
  O  O21  1  0.314  0.314  0.912  1.0
[/CIF]
.
The material structure described by Ca3Nd2Sb3O14 crystallizes in the monoclinic C2/m space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form CaO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-59°. In the second Ca site, Ca(2) is bonded to two equivalent O(1), two equivalent O(5), and four equivalent O(2) atoms to form CaO8 hexagonal bipyramids that share edges with two equivalent Sb(1)O6 octahedra and edges with four equivalent Sb(2)O6 octahedra. In the third Ca site, Ca(3) is bonded in a distorted body-centered cubic geometry to two equivalent O(1), two equivalent O(5), and four equivalent O(3) atoms. Nd(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(4) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra, corners with four equivalent Sb(2)O6 octahedra, and edges with two equivalent Ca(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 42-59°. In the second Sb site, Sb(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms to form SbO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, and edges with two equivalent Ca(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 41-57°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Ca(2), one Ca(3), and two equivalent Nd(1) atoms to form OCa2Nd2 tetrahedra that share corners with two equivalent O(4)CaNd2Sb tetrahedra, corners with four equivalent O(1)Ca2Nd2 tetrahedra, corners with four equivalent O(3)Ca2NdSb tetrahedra,  an edgeedge with one O(4)CaNd2Sb tetrahedra, and edges with two equivalent O(3)Ca2NdSb tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ca(2), one Nd(1), one Sb(1), and one Sb(2) atom. In the third O site, O(3) is bonded to one Ca(1), one Ca(3), one Nd(1), and one Sb(2) atom to form distorted OCa2NdSb tetrahedra that share corners with two equivalent O(1)Ca2Nd2 tetrahedra, corners with two equivalent O(4)CaNd2Sb tetrahedra, corners with six equivalent O(3)Ca2NdSb tetrahedra,  an edgeedge with one O(1)Ca2Nd2 tetrahedra,  an edgeedge with one O(3)Ca2NdSb tetrahedra, and  an edgeedge with one O(4)CaNd2Sb tetrahedra. In the fourth O site, O(4) is bonded to one Ca(1), two equivalent Nd(1), and one Sb(1) atom to form distorted OCaNd2Sb tetrahedra that share corners with two equivalent O(1)Ca2Nd2 tetrahedra, corners with four equivalent O(3)Ca2NdSb tetrahedra, corners with four equivalent O(4)CaNd2Sb tetrahedra,  an edgeedge with one O(1)Ca2Nd2 tetrahedra, and edges with two equivalent O(3)Ca2NdSb tetrahedra. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ca(2), one Ca(3), and two equivalent Sb(2) atoms. is represented by the CIF card [CIF]
data_Ca3Nd2Sb3O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.537
_cell_length_b   7.537
_cell_length_c   7.492
_cell_angle_alpha   60.760
_cell_angle_beta   60.760
_cell_angle_gamma   60.489
_symmetry_Int_Tables_number   1
_cell_volume   305.448
_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
  Ca  Ca0  1  0.000  0.000  0.000  1.0
  Ca  Ca1  1  0.500  0.500  0.500  1.0
  Ca  Ca2  1  0.500  0.500  0.000  1.0
  Nd  Nd3  1  0.500  0.000  0.500  1.0
  Nd  Nd4  1  0.000  0.500  0.500  1.0
  Sb  Sb5  1  0.000  0.000  0.500  1.0
  Sb  Sb6  1  0.500  0.000  0.000  1.0
  Sb  Sb7  1  0.000  0.500  0.000  1.0
  O  O8  1  0.376  0.376  0.380  1.0
  O  O9  1  0.624  0.624  0.620  1.0
  O  O10  1  0.316  0.911  0.317  1.0
  O  O11  1  0.684  0.089  0.683  1.0
  O  O12  1  0.089  0.684  0.683  1.0
  O  O13  1  0.911  0.316  0.317  1.0
  O  O14  1  0.629  0.091  0.099  1.0
  O  O15  1  0.371  0.909  0.901  1.0
  O  O16  1  0.909  0.371  0.901  1.0
  O  O17  1  0.091  0.629  0.099  1.0
  O  O18  1  0.903  0.903  0.371  1.0
  O  O19  1  0.097  0.097  0.629  1.0
  O  O20  1  0.686  0.686  0.088  1.0
  O  O21  1  0.314  0.314  0.912  1.0
[/CIF]
.