The crystal structure described by AgFeS2 is Ilmenite-like structured and crystallizes in the trigonal R3m space group. Fe(1) is bonded to three equivalent S(1) and three equivalent S(2) atoms to form edge-sharing FeS6 octahedra. Ag(1) is bonded in a 4-coordinate geometry to one S(1) and three equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded to three equivalent Fe(1) and one Ag(1) atom to form distorted corner-sharing SFe3Ag trigonal pyramids. In the second S site, S(2) is bonded in a 6-coordinate geometry to three equivalent Fe(1) and three equivalent Ag(1) atoms. is represented by the CIF card [CIF]
data_FeAgS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.094
_cell_length_b   7.094
_cell_length_c   7.094
_cell_angle_alpha   27.472
_cell_angle_beta   27.472
_cell_angle_gamma   27.472
_symmetry_Int_Tables_number   1
_cell_volume   67.055
_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
  Fe  Fe0  1  1.000  1.000  1.000  1.0
  Ag  Ag1  1  0.844  0.844  0.844  1.0
  S  S2  1  0.724  0.724  0.724  1.0
  S  S3  1  0.273  0.273  0.273  1.0
[/CIF]
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The crystal structure described by AgFeS2 is Ilmenite-like structured and crystallizes in the trigonal R3m space group. Fe(1) is bonded to three equivalent S(1) and three equivalent S(2) atoms to form edge-sharing FeS6 octahedra. Ag(1) is bonded in a 4-coordinate geometry to one S(1) and three equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded to three equivalent Fe(1) and one Ag(1) atom to form distorted corner-sharing SFe3Ag trigonal pyramids. In the second S site, S(2) is bonded in a 6-coordinate geometry to three equivalent Fe(1) and three equivalent Ag(1) atoms. is represented by the CIF card [CIF]
data_FeAgS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.094
_cell_length_b   7.094
_cell_length_c   7.094
_cell_angle_alpha   27.472
_cell_angle_beta   27.472
_cell_angle_gamma   27.472
_symmetry_Int_Tables_number   1
_cell_volume   67.055
_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
  Fe  Fe0  1  1.000  1.000  1.000  1.0
  Ag  Ag1  1  0.844  0.844  0.844  1.0
  S  S2  1  0.724  0.724  0.724  1.0
  S  S3  1  0.273  0.273  0.273  1.0
[/CIF]
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