The compound described by FeAgTe2 is Ilmenite-like structured and crystallizes in the trigonal P-3m1 space group. Fe(1) is bonded to two equivalent Ag(1) and four equivalent Te(1) atoms to form FeAg2Te4 octahedra that share corners with four equivalent Ag(2)Te6 octahedra, corners with six equivalent Te(1)Fe2Ag2 tetrahedra, edges with two equivalent Ag(1)Fe3Te3 octahedra, and edges with four equivalent Fe(1)Ag2Te4 octahedra. The corner-sharing octahedral tilt angles are 57°. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to three equivalent Fe(1) and three equivalent Te(1) atoms to form AgFe3Te3 octahedra that share corners with three equivalent Ag(1)Fe3Te3 octahedra, corners with three equivalent Ag(2)Te6 octahedra, corners with six equivalent Te(1)Fe2Ag2 tetrahedra, edges with three equivalent Fe(1)Ag2Te4 octahedra, and edges with three equivalent Te(1)Fe2Ag2 tetrahedra. The corner-sharing octahedral tilt angles range from 0-74°. In the second Ag site, Ag(2) is bonded to six equivalent Te(1) atoms to form distorted AgTe6 octahedra that share corners with six equivalent Ag(1)Fe3Te3 octahedra and corners with twelve equivalent Fe(1)Ag2Te4 octahedra. The corner-sharing octahedral tilt angles range from 57-74°. Te(1) is bonded to two equivalent Fe(1), one Ag(1), and one Ag(2) atom to form distorted TeFe2Ag2 tetrahedra that share corners with two equivalent Ag(1)Fe3Te3 octahedra, corners with three equivalent Fe(1)Ag2Te4 octahedra, corners with nine equivalent Te(1)Fe2Ag2 tetrahedra,  an edgeedge with one Ag(1)Fe3Te3 octahedra, and edges with two equivalent Te(1)Fe2Ag2 tetrahedra. The corner-sharing octahedral tilt angles range from 12-84°. is represented by the CIF file [CIF]
data_FeAgTe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.019
_cell_length_b   8.019
_cell_length_c   5.201
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   289.668
_cell_formula_units_Z   3
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
  Fe  Fe0  1  0.500  0.500  0.500  1.0
  Fe  Fe1  1  0.000  0.500  0.500  1.0
  Fe  Fe2  1  0.500  0.000  0.500  1.0
  Ag  Ag3  1  0.667  0.333  0.820  1.0
  Ag  Ag4  1  0.333  0.667  0.180  1.0
  Ag  Ag5  1  0.000  0.000  0.000  1.0
  Te  Te6  1  0.186  0.814  0.752  1.0
  Te  Te7  1  0.186  0.373  0.752  1.0
  Te  Te8  1  0.627  0.814  0.752  1.0
  Te  Te9  1  0.373  0.186  0.248  1.0
  Te  Te10  1  0.814  0.627  0.248  1.0
  Te  Te11  1  0.814  0.186  0.248  1.0
[/CIF]
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The compound described by FeAgTe2 is Ilmenite-like structured and crystallizes in the trigonal P-3m1 space group. Fe(1) is bonded to two equivalent Ag(1) and four equivalent Te(1) atoms to form FeAg2Te4 octahedra that share corners with four equivalent Ag(2)Te6 octahedra, corners with six equivalent Te(1)Fe2Ag2 tetrahedra, edges with two equivalent Ag(1)Fe3Te3 octahedra, and edges with four equivalent Fe(1)Ag2Te4 octahedra. The corner-sharing octahedral tilt angles are 57°. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to three equivalent Fe(1) and three equivalent Te(1) atoms to form AgFe3Te3 octahedra that share corners with three equivalent Ag(1)Fe3Te3 octahedra, corners with three equivalent Ag(2)Te6 octahedra, corners with six equivalent Te(1)Fe2Ag2 tetrahedra, edges with three equivalent Fe(1)Ag2Te4 octahedra, and edges with three equivalent Te(1)Fe2Ag2 tetrahedra. The corner-sharing octahedral tilt angles range from 0-74°. In the second Ag site, Ag(2) is bonded to six equivalent Te(1) atoms to form distorted AgTe6 octahedra that share corners with six equivalent Ag(1)Fe3Te3 octahedra and corners with twelve equivalent Fe(1)Ag2Te4 octahedra. The corner-sharing octahedral tilt angles range from 57-74°. Te(1) is bonded to two equivalent Fe(1), one Ag(1), and one Ag(2) atom to form distorted TeFe2Ag2 tetrahedra that share corners with two equivalent Ag(1)Fe3Te3 octahedra, corners with three equivalent Fe(1)Ag2Te4 octahedra, corners with nine equivalent Te(1)Fe2Ag2 tetrahedra,  an edgeedge with one Ag(1)Fe3Te3 octahedra, and edges with two equivalent Te(1)Fe2Ag2 tetrahedra. The corner-sharing octahedral tilt angles range from 12-84°. is represented by the CIF file [CIF]
data_FeAgTe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.019
_cell_length_b   8.019
_cell_length_c   5.201
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   289.668
_cell_formula_units_Z   3
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
  Fe  Fe0  1  0.500  0.500  0.500  1.0
  Fe  Fe1  1  0.000  0.500  0.500  1.0
  Fe  Fe2  1  0.500  0.000  0.500  1.0
  Ag  Ag3  1  0.667  0.333  0.820  1.0
  Ag  Ag4  1  0.333  0.667  0.180  1.0
  Ag  Ag5  1  0.000  0.000  0.000  1.0
  Te  Te6  1  0.186  0.814  0.752  1.0
  Te  Te7  1  0.186  0.373  0.752  1.0
  Te  Te8  1  0.627  0.814  0.752  1.0
  Te  Te9  1  0.373  0.186  0.248  1.0
  Te  Te10  1  0.814  0.627  0.248  1.0
  Te  Te11  1  0.814  0.186  0.248  1.0
[/CIF]
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