The crystal structure described by Ag3(AsO4)2 crystallizes in the trigonal R3 space group. Ag(1) is bonded in a rectangular see-saw-like geometry to one O(3), one O(4), and two equivalent O(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a tetrahedral geometry to one O(2) and three equivalent O(1) atoms. In the second As site, As(2) is bonded in a tetrahedral geometry to one O(4) and three equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Ag(1) and one As(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one As(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Ag(1) and one As(2) atom. In the fourth O site, O(4) is bonded in a tetrahedral geometry to three equivalent Ag(1) and one As(2) atom. is represented by the CIF card [CIF]
data_Ag3(AsO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.972
_cell_length_b   5.972
_cell_length_c   5.972
_cell_angle_alpha   88.183
_cell_angle_beta   88.183
_cell_angle_gamma   88.183
_symmetry_Int_Tables_number   1
_cell_volume   212.726
_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
  Ag  Ag0  1  0.510  0.259  0.998  1.0
  Ag  Ag1  1  0.259  0.998  0.510  1.0
  Ag  Ag2  1  0.998  0.510  0.259  1.0
  As  As3  1  0.003  0.003  0.003  1.0
  As  As4  1  0.498  0.498  0.498  1.0
  O  O5  1  0.843  0.211  0.145  1.0
  O  O6  1  0.847  0.847  0.847  1.0
  O  O7  1  0.659  0.646  0.307  1.0
  O  O8  1  0.646  0.307  0.659  1.0
  O  O9  1  0.307  0.659  0.646  1.0
  O  O10  1  0.324  0.324  0.324  1.0
  O  O11  1  0.145  0.843  0.211  1.0
  O  O12  1  0.211  0.145  0.843  1.0
[/CIF]
.
The crystal structure described by Ag3(AsO4)2 crystallizes in the trigonal R3 space group. Ag(1) is bonded in a rectangular see-saw-like geometry to one O(3), one O(4), and two equivalent O(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a tetrahedral geometry to one O(2) and three equivalent O(1) atoms. In the second As site, As(2) is bonded in a tetrahedral geometry to one O(4) and three equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Ag(1) and one As(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one As(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Ag(1) and one As(2) atom. In the fourth O site, O(4) is bonded in a tetrahedral geometry to three equivalent Ag(1) and one As(2) atom. is represented by the CIF card [CIF]
data_Ag3(AsO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.972
_cell_length_b   5.972
_cell_length_c   5.972
_cell_angle_alpha   88.183
_cell_angle_beta   88.183
_cell_angle_gamma   88.183
_symmetry_Int_Tables_number   1
_cell_volume   212.726
_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
  Ag  Ag0  1  0.510  0.259  0.998  1.0
  Ag  Ag1  1  0.259  0.998  0.510  1.0
  Ag  Ag2  1  0.998  0.510  0.259  1.0
  As  As3  1  0.003  0.003  0.003  1.0
  As  As4  1  0.498  0.498  0.498  1.0
  O  O5  1  0.843  0.211  0.145  1.0
  O  O6  1  0.847  0.847  0.847  1.0
  O  O7  1  0.659  0.646  0.307  1.0
  O  O8  1  0.646  0.307  0.659  1.0
  O  O9  1  0.307  0.659  0.646  1.0
  O  O10  1  0.324  0.324  0.324  1.0
  O  O11  1  0.145  0.843  0.211  1.0
  O  O12  1  0.211  0.145  0.843  1.0
[/CIF]
.