The material structure 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 2-coordinate geometry to three equivalent Se(1) atoms. In the second Ag site, Ag(2) is bonded in a 4-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 CIF file [CIF]
data_Ag2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.680
_cell_length_b   7.389
_cell_length_c   7.797
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   269.639
_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  0.994  0.366  0.459  1.0
  Ag  Ag1  1  0.511  0.832  0.288  1.0
  Ag  Ag2  1  0.489  0.332  0.212  1.0
  Ag  Ag3  1  0.006  0.866  0.041  1.0
  Ag  Ag4  1  0.494  0.134  0.541  1.0
  Ag  Ag5  1  0.011  0.668  0.712  1.0
  Ag  Ag6  1  0.989  0.168  0.788  1.0
  Ag  Ag7  1  0.506  0.634  0.959  1.0
  Se  Se8  1  0.503  0.045  0.016  1.0
  Se  Se9  1  0.497  0.545  0.484  1.0
  Se  Se10  1  0.003  0.455  0.984  1.0
  Se  Se11  1  0.997  0.955  0.516  1.0
[/CIF]
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The material structure 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 2-coordinate geometry to three equivalent Se(1) atoms. In the second Ag site, Ag(2) is bonded in a 4-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 CIF file [CIF]
data_Ag2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.680
_cell_length_b   7.389
_cell_length_c   7.797
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   269.639
_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  0.994  0.366  0.459  1.0
  Ag  Ag1  1  0.511  0.832  0.288  1.0
  Ag  Ag2  1  0.489  0.332  0.212  1.0
  Ag  Ag3  1  0.006  0.866  0.041  1.0
  Ag  Ag4  1  0.494  0.134  0.541  1.0
  Ag  Ag5  1  0.011  0.668  0.712  1.0
  Ag  Ag6  1  0.989  0.168  0.788  1.0
  Ag  Ag7  1  0.506  0.634  0.959  1.0
  Se  Se8  1  0.503  0.045  0.016  1.0
  Se  Se9  1  0.497  0.545  0.484  1.0
  Se  Se10  1  0.003  0.455  0.984  1.0
  Se  Se11  1  0.997  0.955  0.516  1.0
[/CIF]
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