The compound described by Ag2Se crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 3-coordinate geometry to three equivalent Se(1) atoms. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to four equivalent Se(1) atoms. Se(1) is bonded in a 7-coordinate geometry to three equivalent Ag(1) and four equivalent Ag(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ag2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.449
_cell_length_b   7.076
_cell_length_c   7.663
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   241.279
_cell_formula_units_Z   4
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
  Ag  Ag0  1  0.017  0.230  0.876  1.0
  Ag  Ag1  1  0.690  0.881  0.944  1.0
  Ag  Ag2  1  0.483  0.770  0.376  1.0
  Ag  Ag3  1  0.190  0.619  0.056  1.0
  Ag  Ag4  1  0.810  0.119  0.444  1.0
  Ag  Ag5  1  0.983  0.730  0.624  1.0
  Ag  Ag6  1  0.310  0.381  0.556  1.0
  Ag  Ag7  1  0.517  0.270  0.124  1.0
  Se  Se8  1  0.879  0.494  0.336  1.0
  Se  Se9  1  0.121  0.994  0.164  1.0
  Se  Se10  1  0.379  0.006  0.664  1.0
  Se  Se11  1  0.621  0.506  0.836  1.0
[/CIF]
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The compound described by Ag2Se crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 3-coordinate geometry to three equivalent Se(1) atoms. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to four equivalent Se(1) atoms. Se(1) is bonded in a 7-coordinate geometry to three equivalent Ag(1) and four equivalent Ag(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ag2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.449
_cell_length_b   7.076
_cell_length_c   7.663
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   241.279
_cell_formula_units_Z   4
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
  Ag  Ag0  1  0.017  0.230  0.876  1.0
  Ag  Ag1  1  0.690  0.881  0.944  1.0
  Ag  Ag2  1  0.483  0.770  0.376  1.0
  Ag  Ag3  1  0.190  0.619  0.056  1.0
  Ag  Ag4  1  0.810  0.119  0.444  1.0
  Ag  Ag5  1  0.983  0.730  0.624  1.0
  Ag  Ag6  1  0.310  0.381  0.556  1.0
  Ag  Ag7  1  0.517  0.270  0.124  1.0
  Se  Se8  1  0.879  0.494  0.336  1.0
  Se  Se9  1  0.121  0.994  0.164  1.0
  Se  Se10  1  0.379  0.006  0.664  1.0
  Se  Se11  1  0.621  0.506  0.836  1.0
[/CIF]
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