The material described by Ba2CdTe3 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to one Te(3), three equivalent Te(1), and three equivalent Te(2) atoms to form distorted BaTe7 pentagonal bipyramids that share corners with four equivalent Cd(1)Te4 tetrahedra, edges with six equivalent Ba(1)Te7 pentagonal bipyramids, and edges with three equivalent Cd(1)Te4 tetrahedra. In the second Ba site, Ba(2) is bonded in a 7-coordinate geometry to one Te(2), two equivalent Te(1), and four equivalent Te(3) atoms. Cd(1) is bonded to one Te(1), one Te(3), and two equivalent Te(2) atoms to form CdTe4 tetrahedra that share corners with four equivalent Ba(1)Te7 pentagonal bipyramids, corners with two equivalent Cd(1)Te4 tetrahedra, and edges with three equivalent Ba(1)Te7 pentagonal bipyramids. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent Ba(2), three equivalent Ba(1), and one Cd(1) atom to form distorted TeBa5Cd octahedra that share corners with six equivalent Te(3)Ba5Cd octahedra, corners with seven equivalent Te(2)Ba4Cd2 octahedra, edges with three equivalent Te(2)Ba4Cd2 octahedra, edges with four equivalent Te(1)Ba5Cd octahedra, and faces with two equivalent Te(3)Ba5Cd octahedra. The corner-sharing octahedral tilt angles range from 23-57°. In the second Te site, Te(2) is bonded to one Ba(2), three equivalent Ba(1), and two equivalent Cd(1) atoms to form distorted TeBa4Cd2 octahedra that share  a cornercorner with one Te(3)Ba5Cd octahedra, corners with seven equivalent Te(1)Ba5Cd octahedra, edges with three equivalent Te(1)Ba5Cd octahedra, edges with four equivalent Te(2)Ba4Cd2 octahedra, and edges with four equivalent Te(3)Ba5Cd octahedra. The corner-sharing octahedral tilt angles range from 23-53°. In the third Te site, Te(3) is bonded to one Ba(1), four equivalent Ba(2), and one Cd(1) atom to form TeBa5Cd octahedra that share  a cornercorner with one Te(2)Ba4Cd2 octahedra, corners with four equivalent Te(3)Ba5Cd octahedra, corners with six equivalent Te(1)Ba5Cd octahedra, edges with four equivalent Te(2)Ba4Cd2 octahedra, edges with four equivalent Te(3)Ba5Cd octahedra, and faces with two equivalent Te(1)Ba5Cd octahedra. The corner-sharing octahedral tilt angles range from 23-57°. is represented by the CIF card [CIF]
data_Ba2CdTe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.819
_cell_length_b   10.011
_cell_length_c   19.382
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   935.109
_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
  Ba  Ba0  1  0.250  0.253  0.537  1.0
  Ba  Ba1  1  0.750  0.747  0.463  1.0
  Ba  Ba2  1  0.250  0.753  0.963  1.0
  Ba  Ba3  1  0.750  0.247  0.037  1.0
  Ba  Ba4  1  0.250  0.426  0.285  1.0
  Ba  Ba5  1  0.750  0.574  0.715  1.0
  Ba  Ba6  1  0.250  0.926  0.215  1.0
  Ba  Ba7  1  0.750  0.074  0.785  1.0
  Cd  Cd8  1  0.750  0.130  0.364  1.0
  Cd  Cd9  1  0.250  0.370  0.864  1.0
  Cd  Cd10  1  0.750  0.630  0.136  1.0
  Cd  Cd11  1  0.250  0.870  0.636  1.0
  Te  Te12  1  0.250  0.113  0.928  1.0
  Te  Te13  1  0.750  0.887  0.072  1.0
  Te  Te14  1  0.250  0.613  0.572  1.0
  Te  Te15  1  0.750  0.387  0.428  1.0
  Te  Te16  1  0.250  0.988  0.403  1.0
  Te  Te17  1  0.750  0.512  0.903  1.0
  Te  Te18  1  0.250  0.488  0.097  1.0
  Te  Te19  1  0.750  0.012  0.597  1.0
  Te  Te20  1  0.750  0.192  0.220  1.0
  Te  Te21  1  0.250  0.808  0.780  1.0
  Te  Te22  1  0.750  0.692  0.280  1.0
  Te  Te23  1  0.250  0.308  0.720  1.0
[/CIF]
.
The material described by Ba2CdTe3 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to one Te(3), three equivalent Te(1), and three equivalent Te(2) atoms to form distorted BaTe7 pentagonal bipyramids that share corners with four equivalent Cd(1)Te4 tetrahedra, edges with six equivalent Ba(1)Te7 pentagonal bipyramids, and edges with three equivalent Cd(1)Te4 tetrahedra. In the second Ba site, Ba(2) is bonded in a 7-coordinate geometry to one Te(2), two equivalent Te(1), and four equivalent Te(3) atoms. Cd(1) is bonded to one Te(1), one Te(3), and two equivalent Te(2) atoms to form CdTe4 tetrahedra that share corners with four equivalent Ba(1)Te7 pentagonal bipyramids, corners with two equivalent Cd(1)Te4 tetrahedra, and edges with three equivalent Ba(1)Te7 pentagonal bipyramids. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent Ba(2), three equivalent Ba(1), and one Cd(1) atom to form distorted TeBa5Cd octahedra that share corners with six equivalent Te(3)Ba5Cd octahedra, corners with seven equivalent Te(2)Ba4Cd2 octahedra, edges with three equivalent Te(2)Ba4Cd2 octahedra, edges with four equivalent Te(1)Ba5Cd octahedra, and faces with two equivalent Te(3)Ba5Cd octahedra. The corner-sharing octahedral tilt angles range from 23-57°. In the second Te site, Te(2) is bonded to one Ba(2), three equivalent Ba(1), and two equivalent Cd(1) atoms to form distorted TeBa4Cd2 octahedra that share  a cornercorner with one Te(3)Ba5Cd octahedra, corners with seven equivalent Te(1)Ba5Cd octahedra, edges with three equivalent Te(1)Ba5Cd octahedra, edges with four equivalent Te(2)Ba4Cd2 octahedra, and edges with four equivalent Te(3)Ba5Cd octahedra. The corner-sharing octahedral tilt angles range from 23-53°. In the third Te site, Te(3) is bonded to one Ba(1), four equivalent Ba(2), and one Cd(1) atom to form TeBa5Cd octahedra that share  a cornercorner with one Te(2)Ba4Cd2 octahedra, corners with four equivalent Te(3)Ba5Cd octahedra, corners with six equivalent Te(1)Ba5Cd octahedra, edges with four equivalent Te(2)Ba4Cd2 octahedra, edges with four equivalent Te(3)Ba5Cd octahedra, and faces with two equivalent Te(1)Ba5Cd octahedra. The corner-sharing octahedral tilt angles range from 23-57°. is represented by the CIF card [CIF]
data_Ba2CdTe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.819
_cell_length_b   10.011
_cell_length_c   19.382
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   935.109
_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
  Ba  Ba0  1  0.250  0.253  0.537  1.0
  Ba  Ba1  1  0.750  0.747  0.463  1.0
  Ba  Ba2  1  0.250  0.753  0.963  1.0
  Ba  Ba3  1  0.750  0.247  0.037  1.0
  Ba  Ba4  1  0.250  0.426  0.285  1.0
  Ba  Ba5  1  0.750  0.574  0.715  1.0
  Ba  Ba6  1  0.250  0.926  0.215  1.0
  Ba  Ba7  1  0.750  0.074  0.785  1.0
  Cd  Cd8  1  0.750  0.130  0.364  1.0
  Cd  Cd9  1  0.250  0.370  0.864  1.0
  Cd  Cd10  1  0.750  0.630  0.136  1.0
  Cd  Cd11  1  0.250  0.870  0.636  1.0
  Te  Te12  1  0.250  0.113  0.928  1.0
  Te  Te13  1  0.750  0.887  0.072  1.0
  Te  Te14  1  0.250  0.613  0.572  1.0
  Te  Te15  1  0.750  0.387  0.428  1.0
  Te  Te16  1  0.250  0.988  0.403  1.0
  Te  Te17  1  0.750  0.512  0.903  1.0
  Te  Te18  1  0.250  0.488  0.097  1.0
  Te  Te19  1  0.750  0.012  0.597  1.0
  Te  Te20  1  0.750  0.192  0.220  1.0
  Te  Te21  1  0.250  0.808  0.780  1.0
  Te  Te22  1  0.750  0.692  0.280  1.0
  Te  Te23  1  0.250  0.308  0.720  1.0
[/CIF]
.