The structure described by ErAgS2 crystallizes in the tetragonal I4_1/amd space group. Er(1) is bonded to six equivalent S(1) atoms to form a mixture of corner and edge-sharing ErS6 octahedra. The corner-sharing octahedral tilt angles are 11°. Ag(1) is bonded in a distorted square co-planar geometry to four equivalent S(1) atoms. S(1) is bonded to three equivalent Er(1) and two equivalent Ag(1) atoms to form a mixture of distorted corner and edge-sharing SEr3Ag2 square pyramids. is represented by the CIF file [CIF]
data_ErAgS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.038
_cell_length_b   7.038
_cell_length_c   7.038
_cell_angle_alpha   135.012
_cell_angle_beta   135.012
_cell_angle_gamma   65.512
_symmetry_Int_Tables_number   1
_cell_volume   171.692
_cell_formula_units_Z   2
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
  Er  Er0  1  0.500  0.500  0.000  1.0
  Er  Er1  1  0.250  0.750  0.500  1.0
  Ag  Ag2  1  0.750  0.250  0.500  1.0
  Ag  Ag3  1  0.000  0.000  0.000  1.0
  S  S4  1  0.728  0.728  0.000  1.0
  S  S5  1  0.022  0.522  0.500  1.0
  S  S6  1  0.478  0.978  0.500  1.0
  S  S7  1  0.272  0.272  0.000  1.0
[/CIF]
.
The structure described by ErAgS2 crystallizes in the tetragonal I4_1/amd space group. Er(1) is bonded to six equivalent S(1) atoms to form a mixture of corner and edge-sharing ErS6 octahedra. The corner-sharing octahedral tilt angles are 11°. Ag(1) is bonded in a distorted square co-planar geometry to four equivalent S(1) atoms. S(1) is bonded to three equivalent Er(1) and two equivalent Ag(1) atoms to form a mixture of distorted corner and edge-sharing SEr3Ag2 square pyramids. is represented by the CIF file [CIF]
data_ErAgS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.038
_cell_length_b   7.038
_cell_length_c   7.038
_cell_angle_alpha   135.012
_cell_angle_beta   135.012
_cell_angle_gamma   65.512
_symmetry_Int_Tables_number   1
_cell_volume   171.692
_cell_formula_units_Z   2
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
  Er  Er0  1  0.500  0.500  0.000  1.0
  Er  Er1  1  0.250  0.750  0.500  1.0
  Ag  Ag2  1  0.750  0.250  0.500  1.0
  Ag  Ag3  1  0.000  0.000  0.000  1.0
  S  S4  1  0.728  0.728  0.000  1.0
  S  S5  1  0.022  0.522  0.500  1.0
  S  S6  1  0.478  0.978  0.500  1.0
  S  S7  1  0.272  0.272  0.000  1.0
[/CIF]
.