The compound described by ErAgS2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Er(1) is bonded to six equivalent S(1) atoms to form ErS6 octahedra that share corners with six equivalent Ag(1)S6 octahedra, edges with six equivalent Er(1)S6 octahedra, and edges with six equivalent Ag(1)S6 octahedra. The corner-sharing octahedral tilt angles are 3°. Ag(1) is bonded to six equivalent S(1) atoms to form AgS6 octahedra that share corners with six equivalent Er(1)S6 octahedra, edges with six equivalent Er(1)S6 octahedra, and edges with six equivalent Ag(1)S6 octahedra. The corner-sharing octahedral tilt angles are 3°. S(1) is bonded to three equivalent Er(1) and three equivalent Ag(1) atoms to form a mixture of edge and corner-sharing SEr3Ag3 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErAgS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.602
_cell_length_b   6.602
_cell_length_c   6.602
_cell_angle_alpha   35.164
_cell_angle_beta   35.164
_cell_angle_gamma   35.164
_symmetry_Int_Tables_number   1
_cell_volume   85.260
_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
  Er  Er0  1  0.500  0.500  0.500  1.0
  Ag  Ag1  1  0.000  0.000  0.000  1.0
  S  S2  1  0.246  0.246  0.246  1.0
  S  S3  1  0.754  0.754  0.754  1.0
[/CIF]
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The compound described by ErAgS2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Er(1) is bonded to six equivalent S(1) atoms to form ErS6 octahedra that share corners with six equivalent Ag(1)S6 octahedra, edges with six equivalent Er(1)S6 octahedra, and edges with six equivalent Ag(1)S6 octahedra. The corner-sharing octahedral tilt angles are 3°. Ag(1) is bonded to six equivalent S(1) atoms to form AgS6 octahedra that share corners with six equivalent Er(1)S6 octahedra, edges with six equivalent Er(1)S6 octahedra, and edges with six equivalent Ag(1)S6 octahedra. The corner-sharing octahedral tilt angles are 3°. S(1) is bonded to three equivalent Er(1) and three equivalent Ag(1) atoms to form a mixture of edge and corner-sharing SEr3Ag3 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErAgS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.602
_cell_length_b   6.602
_cell_length_c   6.602
_cell_angle_alpha   35.164
_cell_angle_beta   35.164
_cell_angle_gamma   35.164
_symmetry_Int_Tables_number   1
_cell_volume   85.260
_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
  Er  Er0  1  0.500  0.500  0.500  1.0
  Ag  Ag1  1  0.000  0.000  0.000  1.0
  S  S2  1  0.246  0.246  0.246  1.0
  S  S3  1  0.754  0.754  0.754  1.0
[/CIF]
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