data_Ag2PBr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.05
_cell_length_b   5.05
_cell_length_c   3.14
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ag2PBr
_chemical_formula_sum   'Ag2 P1 Br1'
_cell_volume   80.08
_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  0.0  0.53  0.57  1.0
  Ag  Ag1  1  0.53  0.0  0.57  1.0
  P  P3  1  0.0  0.0  0.0  1.0
  Br  Br2  1  0.53  0.53  0.0  1.0

data_Ag2PBr
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.15
_cell_length_b   7.15
_cell_length_c   3.14
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ag2PBr
_chemical_formula_sum   'Ag4 P2 Br2'
_cell_volume   160.16
_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  4  0.26  0.26  0.57  1.0
  P  P1  2  0.0  0.0  0.0  1.0
  Br  Br2  2  0.03  0.5  0.0  1.0

Ag Ag P Br
Ag2PBr crystallizes in the monoclinic Cm space group. Ag(1) is bonded in a 7-coordinate geometry to four equivalent P(1) and four equivalent Br(1) atoms. There are a spread of Ag(1)-P(1) bond distances ranging from 2.75-3.20 Å. There are a spread of Ag(1)-Br(1) bond distances ranging from 2.75-3.20 Å. P(1) is bonded in a distorted body-centered cubic geometry to eight equivalent Ag(1) atoms. Br(1) is bonded in a distorted body-centered cubic geometry to eight equivalent Ag(1) atoms.