The crystal structure described by FeAg2SnS4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Fe(1) is bonded to four equivalent S(1) atoms to form FeS4 tetrahedra that share corners with four equivalent Sn(1)S4 tetrahedra and corners with eight equivalent Ag(1)S4 tetrahedra. Ag(1) is bonded to four equivalent S(1) atoms to form AgS4 tetrahedra that share corners with four equivalent Fe(1)S4 tetrahedra, corners with four equivalent Ag(1)S4 tetrahedra, and corners with four equivalent Sn(1)S4 tetrahedra. Sn(1) is bonded to four equivalent S(1) atoms to form SnS4 tetrahedra that share corners with four equivalent Fe(1)S4 tetrahedra and corners with eight equivalent Ag(1)S4 tetrahedra. S(1) is bonded to one Fe(1), two equivalent Ag(1), and one Sn(1) atom to form corner-sharing SFeAg2Sn tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_FeAg2SnS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.138
_cell_length_b   7.138
_cell_length_c   7.138
_cell_angle_alpha   133.782
_cell_angle_beta   133.782
_cell_angle_gamma   67.429
_symmetry_Int_Tables_number   1
_cell_volume   186.407
_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  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
  Sn  Sn3  1  0.500  0.500  0.000  1.0
  S  S4  1  0.880  0.880  0.531  1.0
  S  S5  1  0.120  0.651  0.000  1.0
  S  S6  1  0.651  0.120  0.000  1.0
  S  S7  1  0.349  0.349  0.469  1.0
[/CIF]
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The crystal structure described by FeAg2SnS4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Fe(1) is bonded to four equivalent S(1) atoms to form FeS4 tetrahedra that share corners with four equivalent Sn(1)S4 tetrahedra and corners with eight equivalent Ag(1)S4 tetrahedra. Ag(1) is bonded to four equivalent S(1) atoms to form AgS4 tetrahedra that share corners with four equivalent Fe(1)S4 tetrahedra, corners with four equivalent Ag(1)S4 tetrahedra, and corners with four equivalent Sn(1)S4 tetrahedra. Sn(1) is bonded to four equivalent S(1) atoms to form SnS4 tetrahedra that share corners with four equivalent Fe(1)S4 tetrahedra and corners with eight equivalent Ag(1)S4 tetrahedra. S(1) is bonded to one Fe(1), two equivalent Ag(1), and one Sn(1) atom to form corner-sharing SFeAg2Sn tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_FeAg2SnS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.138
_cell_length_b   7.138
_cell_length_c   7.138
_cell_angle_alpha   133.782
_cell_angle_beta   133.782
_cell_angle_gamma   67.429
_symmetry_Int_Tables_number   1
_cell_volume   186.407
_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  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
  Sn  Sn3  1  0.500  0.500  0.000  1.0
  S  S4  1  0.880  0.880  0.531  1.0
  S  S5  1  0.120  0.651  0.000  1.0
  S  S6  1  0.651  0.120  0.000  1.0
  S  S7  1  0.349  0.349  0.469  1.0
[/CIF]
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