The compound described by Cu2CdSiTe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Cu(1) is bonded to four equivalent Te(1) atoms to form CuTe4 tetrahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, corners with four equivalent Cd(1)Te4 tetrahedra, and corners with four equivalent Si(1)Te4 tetrahedra. Cd(1) is bonded to four equivalent Te(1) atoms to form CdTe4 tetrahedra that share corners with four equivalent Si(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Si(1) is bonded to four equivalent Te(1) atoms to form SiTe4 tetrahedra that share corners with four equivalent Cd(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Te(1) is bonded to two equivalent Cu(1), one Cd(1), and one Si(1) atom to form corner-sharing TeCdCu2Si tetrahedra. is represented by the CIF file [CIF]
data_CdCu2SiTe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.435
_cell_length_b   7.435
_cell_length_c   7.435
_cell_angle_alpha   130.977
_cell_angle_beta   130.977
_cell_angle_gamma   71.850
_symmetry_Int_Tables_number   1
_cell_volume   229.104
_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
  Cd  Cd0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.750  0.250  0.500  1.0
  Cu  Cu2  1  0.250  0.750  0.500  1.0
  Si  Si3  1  0.500  0.500  0.000  1.0
  Te  Te4  1  0.865  0.404  0.000  1.0
  Te  Te5  1  0.404  0.865  0.000  1.0
  Te  Te6  1  0.135  0.135  0.539  1.0
  Te  Te7  1  0.596  0.596  0.461  1.0
[/CIF]
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The compound described by Cu2CdSiTe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Cu(1) is bonded to four equivalent Te(1) atoms to form CuTe4 tetrahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, corners with four equivalent Cd(1)Te4 tetrahedra, and corners with four equivalent Si(1)Te4 tetrahedra. Cd(1) is bonded to four equivalent Te(1) atoms to form CdTe4 tetrahedra that share corners with four equivalent Si(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Si(1) is bonded to four equivalent Te(1) atoms to form SiTe4 tetrahedra that share corners with four equivalent Cd(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Te(1) is bonded to two equivalent Cu(1), one Cd(1), and one Si(1) atom to form corner-sharing TeCdCu2Si tetrahedra. is represented by the CIF file [CIF]
data_CdCu2SiTe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.435
_cell_length_b   7.435
_cell_length_c   7.435
_cell_angle_alpha   130.977
_cell_angle_beta   130.977
_cell_angle_gamma   71.850
_symmetry_Int_Tables_number   1
_cell_volume   229.104
_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
  Cd  Cd0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.750  0.250  0.500  1.0
  Cu  Cu2  1  0.250  0.750  0.500  1.0
  Si  Si3  1  0.500  0.500  0.000  1.0
  Te  Te4  1  0.865  0.404  0.000  1.0
  Te  Te5  1  0.404  0.865  0.000  1.0
  Te  Te6  1  0.135  0.135  0.539  1.0
  Te  Te7  1  0.596  0.596  0.461  1.0
[/CIF]
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