The material structure described by MnCu2GeTe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Mn(1) is bonded to four equivalent Te(1) atoms to form MnTe4 tetrahedra that share corners with four equivalent Ge(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Cu(1) is bonded to four equivalent Te(1) atoms to form CuTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra, corners with four equivalent Cu(1)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. Ge(1) is bonded to four equivalent Te(1) atoms to form GeTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Te(1) is bonded to one Mn(1), two equivalent Cu(1), and one Ge(1) atom to form corner-sharing TeMnCu2Ge tetrahedra. is represented by the CIF card [CIF]
data_MnCu2GeTe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.403
_cell_length_b   7.403
_cell_length_c   7.403
_cell_angle_alpha   131.235
_cell_angle_beta   131.235
_cell_angle_gamma   71.440
_symmetry_Int_Tables_number   1
_cell_volume   224.579
_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
  Mn  Mn0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.250  0.750  0.500  1.0
  Cu  Cu2  1  0.750  0.250  0.500  1.0
  Ge  Ge3  1  0.500  0.500  0.000  1.0
  Te  Te4  1  0.385  0.881  0.000  1.0
  Te  Te5  1  0.881  0.385  0.000  1.0
  Te  Te6  1  0.119  0.119  0.503  1.0
  Te  Te7  1  0.615  0.615  0.497  1.0
[/CIF]
.
The material structure described by MnCu2GeTe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Mn(1) is bonded to four equivalent Te(1) atoms to form MnTe4 tetrahedra that share corners with four equivalent Ge(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Cu(1) is bonded to four equivalent Te(1) atoms to form CuTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra, corners with four equivalent Cu(1)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. Ge(1) is bonded to four equivalent Te(1) atoms to form GeTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Te(1) is bonded to one Mn(1), two equivalent Cu(1), and one Ge(1) atom to form corner-sharing TeMnCu2Ge tetrahedra. is represented by the CIF card [CIF]
data_MnCu2GeTe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.403
_cell_length_b   7.403
_cell_length_c   7.403
_cell_angle_alpha   131.235
_cell_angle_beta   131.235
_cell_angle_gamma   71.440
_symmetry_Int_Tables_number   1
_cell_volume   224.579
_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
  Mn  Mn0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.250  0.750  0.500  1.0
  Cu  Cu2  1  0.750  0.250  0.500  1.0
  Ge  Ge3  1  0.500  0.500  0.000  1.0
  Te  Te4  1  0.385  0.881  0.000  1.0
  Te  Te5  1  0.881  0.385  0.000  1.0
  Te  Te6  1  0.119  0.119  0.503  1.0
  Te  Te7  1  0.615  0.615  0.497  1.0
[/CIF]
.