data_AgAs3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.12
_cell_length_b   5.12
_cell_length_c   2.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgAs3
_chemical_formula_sum   'Ag1 As3'
_cell_volume   76.51
_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  0.56  0.56  0.0  1.0
  As  As1  1  0.56  0.0  0.46  1.0
  As  As2  1  0.0  0.56  0.46  1.0
  As  As3  1  0.0  0.0  0.0  1.0

data_AgAs3
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.24
_cell_length_b   7.24
_cell_length_c   2.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AgAs3
_chemical_formula_sum   'Ag2 As6'
_cell_volume   153.03
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.06  0.5  -0.0  1.0
  As  As1  4  0.28  0.28  0.46  1.0
  As  As2  2  0.0  0.0  0.0  1.0

Ag As As As
Ag As As As 0 2 o o - 0 2 o o o 0 2 + o - 0 2 + o o 0 1 o o - 0 1 o o o 0 1 o + - 0 1 o + o 0 0 o o + 0 3 + + o 1 3 o o o 1 3 o o + 1 3 + o o 1 3 + o + 1 2 + - o 1 1 o o + 2 3 o o o 2 3 o o + 2 3 o + o 2 3 o + + 2 2 o o + 3 3 o o + 
AgAs3 crystallizes in the monoclinic Cm space group. Ag(1) is bonded in a 11-coordinate geometry to two equivalent Ag(1), one As(2), and eight equivalent As(1) atoms. Both Ag(1)-Ag(1) bond lengths are 2.92 Å. The Ag(1)-As(2) bond length is 3.19 Å. There are a spread of Ag(1)-As(1) bond distances ranging from 2.62-3.27 Å. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent Ag(1), two equivalent As(1), and two equivalent As(2) atoms. Both As(1)-As(1) bond lengths are 2.92 Å. There is one shorter (2.62 Å) and one longer (2.75 Å) As(1)-As(2) bond length. In the second As site, As(2) is bonded in a 6-coordinate geometry to one Ag(1), two equivalent As(2), and four equivalent As(1) atoms. Both As(2)-As(2) bond lengths are 2.92 Å.