The material described by Cu2Bi3Sb3O14 crystallizes in the trigonal R-3m space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a linear geometry to two equivalent O(3) and six equivalent O(1) atoms. In the second Cu site, Cu(2) is bonded to six equivalent O(2) atoms to form CuO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and edges with six equivalent Bi(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 51°. Bi(1) is bonded to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms to form BiO8 hexagonal bipyramids that share edges with four equivalent Bi(1)O8 hexagonal bipyramids, edges with two equivalent Cu(2)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. 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 Cu(2)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra, and edges with four equivalent Bi(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 44-51°. There are three inequivalent O sites. In the first O site, O(3) is bonded to one Cu(1) and three equivalent Bi(1) atoms to form OCuBi3 tetrahedra that share corners with four equivalent O(3)CuBi3 tetrahedra, corners with six equivalent O(2)CuBi2Sb tetrahedra, and edges with three equivalent O(2)CuBi2Sb tetrahedra. In the second O site, O(1) is bonded in a 4-coordinate geometry to one Cu(1), one Bi(1), and two equivalent Sb(1) atoms. In the third O site, O(2) is bonded to one Cu(2), two equivalent Bi(1), and one Sb(1) atom to form distorted OCuBi2Sb tetrahedra that share corners with two equivalent O(3)CuBi3 tetrahedra, corners with eight equivalent O(2)CuBi2Sb tetrahedra,  an edgeedge with one O(3)CuBi3 tetrahedra, and edges with two equivalent O(2)CuBi2Sb tetrahedra. is represented by the CIF card [CIF]
data_Cu2Bi3Sb3O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.303
_cell_length_b   7.303
_cell_length_c   7.303
_cell_angle_alpha   62.001
_cell_angle_beta   62.001
_cell_angle_gamma   62.001
_symmetry_Int_Tables_number   1
_cell_volume   287.762
_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
  Cu  Cu0  1  0.500  0.500  0.500  1.0
  Cu  Cu1  1  0.000  0.000  0.000  1.0
  Bi  Bi2  1  0.000  0.500  0.500  1.0
  Bi  Bi3  1  0.500  0.500  0.000  1.0
  Bi  Bi4  1  0.500  0.000  0.500  1.0
  Sb  Sb5  1  0.500  0.000  0.000  1.0
  Sb  Sb6  1  0.000  0.000  0.500  1.0
  Sb  Sb7  1  0.000  0.500  0.000  1.0
  O  O8  1  0.929  0.322  0.322  1.0
  O  O9  1  0.336  0.916  0.916  1.0
  O  O10  1  0.322  0.322  0.929  1.0
  O  O11  1  0.916  0.916  0.336  1.0
  O  O12  1  0.916  0.336  0.916  1.0
  O  O13  1  0.322  0.929  0.322  1.0
  O  O14  1  0.071  0.678  0.678  1.0
  O  O15  1  0.664  0.084  0.084  1.0
  O  O16  1  0.678  0.678  0.071  1.0
  O  O17  1  0.084  0.084  0.664  1.0
  O  O18  1  0.084  0.664  0.084  1.0
  O  O19  1  0.678  0.071  0.678  1.0
  O  O20  1  0.391  0.391  0.391  1.0
  O  O21  1  0.609  0.609  0.609  1.0
[/CIF]
.
The material described by Cu2Bi3Sb3O14 crystallizes in the trigonal R-3m space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a linear geometry to two equivalent O(3) and six equivalent O(1) atoms. In the second Cu site, Cu(2) is bonded to six equivalent O(2) atoms to form CuO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and edges with six equivalent Bi(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 51°. Bi(1) is bonded to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms to form BiO8 hexagonal bipyramids that share edges with four equivalent Bi(1)O8 hexagonal bipyramids, edges with two equivalent Cu(2)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. 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 Cu(2)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra, and edges with four equivalent Bi(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 44-51°. There are three inequivalent O sites. In the first O site, O(3) is bonded to one Cu(1) and three equivalent Bi(1) atoms to form OCuBi3 tetrahedra that share corners with four equivalent O(3)CuBi3 tetrahedra, corners with six equivalent O(2)CuBi2Sb tetrahedra, and edges with three equivalent O(2)CuBi2Sb tetrahedra. In the second O site, O(1) is bonded in a 4-coordinate geometry to one Cu(1), one Bi(1), and two equivalent Sb(1) atoms. In the third O site, O(2) is bonded to one Cu(2), two equivalent Bi(1), and one Sb(1) atom to form distorted OCuBi2Sb tetrahedra that share corners with two equivalent O(3)CuBi3 tetrahedra, corners with eight equivalent O(2)CuBi2Sb tetrahedra,  an edgeedge with one O(3)CuBi3 tetrahedra, and edges with two equivalent O(2)CuBi2Sb tetrahedra. is represented by the CIF card [CIF]
data_Cu2Bi3Sb3O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.303
_cell_length_b   7.303
_cell_length_c   7.303
_cell_angle_alpha   62.001
_cell_angle_beta   62.001
_cell_angle_gamma   62.001
_symmetry_Int_Tables_number   1
_cell_volume   287.762
_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
  Cu  Cu0  1  0.500  0.500  0.500  1.0
  Cu  Cu1  1  0.000  0.000  0.000  1.0
  Bi  Bi2  1  0.000  0.500  0.500  1.0
  Bi  Bi3  1  0.500  0.500  0.000  1.0
  Bi  Bi4  1  0.500  0.000  0.500  1.0
  Sb  Sb5  1  0.500  0.000  0.000  1.0
  Sb  Sb6  1  0.000  0.000  0.500  1.0
  Sb  Sb7  1  0.000  0.500  0.000  1.0
  O  O8  1  0.929  0.322  0.322  1.0
  O  O9  1  0.336  0.916  0.916  1.0
  O  O10  1  0.322  0.322  0.929  1.0
  O  O11  1  0.916  0.916  0.336  1.0
  O  O12  1  0.916  0.336  0.916  1.0
  O  O13  1  0.322  0.929  0.322  1.0
  O  O14  1  0.071  0.678  0.678  1.0
  O  O15  1  0.664  0.084  0.084  1.0
  O  O16  1  0.678  0.678  0.071  1.0
  O  O17  1  0.084  0.084  0.664  1.0
  O  O18  1  0.084  0.664  0.084  1.0
  O  O19  1  0.678  0.071  0.678  1.0
  O  O20  1  0.391  0.391  0.391  1.0
  O  O21  1  0.609  0.609  0.609  1.0
[/CIF]
.