The material described by Ag2MnGeTe4 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 Ag(1)Te4 tetrahedra. Ag(1) is bonded to four equivalent Te(1) atoms to form AgTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra, corners with four equivalent Ag(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 Ag(1)Te4 tetrahedra. Te(1) is bonded to one Mn(1), two equivalent Ag(1), and one Ge(1) atom to form corner-sharing TeMnAg2Ge tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_MnAg2GeTe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.861
_cell_length_b   7.861
_cell_length_c   7.861
_cell_angle_alpha   132.923
_cell_angle_beta   132.923
_cell_angle_gamma   68.776
_symmetry_Int_Tables_number   1
_cell_volume   255.745
_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
  Ag  Ag1  1  0.250  0.750  0.500  1.0
  Ag  Ag2  1  0.750  0.250  0.500  1.0
  Ge  Ge3  1  0.500  0.500  0.000  1.0
  Te  Te4  1  0.375  0.865  0.000  1.0
  Te  Te5  1  0.865  0.375  0.000  1.0
  Te  Te6  1  0.135  0.135  0.510  1.0
  Te  Te7  1  0.625  0.625  0.490  1.0
[/CIF]
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The material described by Ag2MnGeTe4 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 Ag(1)Te4 tetrahedra. Ag(1) is bonded to four equivalent Te(1) atoms to form AgTe4 tetrahedra that share corners with four equivalent Mn(1)Te4 tetrahedra, corners with four equivalent Ag(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 Ag(1)Te4 tetrahedra. Te(1) is bonded to one Mn(1), two equivalent Ag(1), and one Ge(1) atom to form corner-sharing TeMnAg2Ge tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_MnAg2GeTe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.861
_cell_length_b   7.861
_cell_length_c   7.861
_cell_angle_alpha   132.923
_cell_angle_beta   132.923
_cell_angle_gamma   68.776
_symmetry_Int_Tables_number   1
_cell_volume   255.745
_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
  Ag  Ag1  1  0.250  0.750  0.500  1.0
  Ag  Ag2  1  0.750  0.250  0.500  1.0
  Ge  Ge3  1  0.500  0.500  0.000  1.0
  Te  Te4  1  0.375  0.865  0.000  1.0
  Te  Te5  1  0.865  0.375  0.000  1.0
  Te  Te6  1  0.135  0.135  0.510  1.0
  Te  Te7  1  0.625  0.625  0.490  1.0
[/CIF]
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