The material structure described by Cu2CdGeSe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Cu(1) is bonded to four equivalent Se(1) atoms to form CuSe4 tetrahedra that share corners with four equivalent Cu(1)Se4 tetrahedra, corners with four equivalent Cd(1)Se4 tetrahedra, and corners with four equivalent Ge(1)Se4 tetrahedra. Cd(1) is bonded to four equivalent Se(1) atoms to form CdSe4 tetrahedra that share corners with four equivalent Ge(1)Se4 tetrahedra and corners with eight equivalent Cu(1)Se4 tetrahedra. Ge(1) is bonded to four equivalent Se(1) atoms to form GeSe4 tetrahedra that share corners with four equivalent Cd(1)Se4 tetrahedra and corners with eight equivalent Cu(1)Se4 tetrahedra. Se(1) is bonded to two equivalent Cu(1), one Cd(1), and one Ge(1) atom to form corner-sharing SeCdCu2Ge tetrahedra. is represented by the CIF card [CIF]
data_CdCu2GeSe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.970
_cell_length_b   6.970
_cell_length_c   6.970
_cell_angle_alpha   130.513
_cell_angle_beta   130.513
_cell_angle_gamma   72.588
_symmetry_Int_Tables_number   1
_cell_volume   191.220
_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
  Ge  Ge3  1  0.500  0.500  0.000  1.0
  Se  Se4  1  0.405  0.868  0.000  1.0
  Se  Se5  1  0.595  0.595  0.463  1.0
  Se  Se6  1  0.132  0.132  0.537  1.0
  Se  Se7  1  0.868  0.405  0.000  1.0
[/CIF]
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The material structure described by Cu2CdGeSe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Cu(1) is bonded to four equivalent Se(1) atoms to form CuSe4 tetrahedra that share corners with four equivalent Cu(1)Se4 tetrahedra, corners with four equivalent Cd(1)Se4 tetrahedra, and corners with four equivalent Ge(1)Se4 tetrahedra. Cd(1) is bonded to four equivalent Se(1) atoms to form CdSe4 tetrahedra that share corners with four equivalent Ge(1)Se4 tetrahedra and corners with eight equivalent Cu(1)Se4 tetrahedra. Ge(1) is bonded to four equivalent Se(1) atoms to form GeSe4 tetrahedra that share corners with four equivalent Cd(1)Se4 tetrahedra and corners with eight equivalent Cu(1)Se4 tetrahedra. Se(1) is bonded to two equivalent Cu(1), one Cd(1), and one Ge(1) atom to form corner-sharing SeCdCu2Ge tetrahedra. is represented by the CIF card [CIF]
data_CdCu2GeSe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.970
_cell_length_b   6.970
_cell_length_c   6.970
_cell_angle_alpha   130.513
_cell_angle_beta   130.513
_cell_angle_gamma   72.588
_symmetry_Int_Tables_number   1
_cell_volume   191.220
_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
  Ge  Ge3  1  0.500  0.500  0.000  1.0
  Se  Se4  1  0.405  0.868  0.000  1.0
  Se  Se5  1  0.595  0.595  0.463  1.0
  Se  Se6  1  0.132  0.132  0.537  1.0
  Se  Se7  1  0.868  0.405  0.000  1.0
[/CIF]
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