The material structure described by Ag4I(PO4) crystallizes in the monoclinic P2_1/m space group. There are five inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to one O(6), two equivalent O(1), and one I(2) atom. In the second Ag site, Ag(2) is bonded in a distorted bent 120 degrees geometry to one O(4), one O(5), one I(1), and two equivalent I(2) atoms. In the third Ag site, Ag(3) is bonded to one O(2), one O(3), two equivalent O(5), and one I(2) atom to form distorted AgIO4 trigonal pyramids that share  a cornercorner with one P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. In the fourth Ag site, Ag(4) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(5), and one I(1) atom. In the fifth Ag site, Ag(5) is bonded in a 4-coordinate geometry to one O(6), two equivalent O(1), and one I(1) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(6), and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with three equivalent Ag(3)IO4 trigonal pyramids. In the second P site, P(2) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form PO4 tetrahedra that share  a cornercorner with one Ag(3)IO4 trigonal pyramid. There are six inequivalent O sites. In the first O site, O(6) is bonded in a 4-coordinate geometry to one Ag(5), two equivalent Ag(1), and one P(1) atom. In the second O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Ag(5), two equivalent Ag(1), and one P(2) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Ag(3), two equivalent Ag(4), and one P(1) atom. In the fourth O site, O(3) is bonded in a 4-coordinate geometry to one Ag(3), two equivalent Ag(4), and one P(2) atom. In the fifth O site, O(4) is bonded in a trigonal planar geometry to two equivalent Ag(2) and one P(2) atom. In the sixth O site, O(5) is bonded in a 4-coordinate geometry to one Ag(2), one Ag(3), one Ag(4), and one P(1) atom. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 5-coordinate geometry to one Ag(5), two equivalent Ag(2), and two equivalent Ag(4) atoms. In the second I site, I(2) is bonded in a 7-coordinate geometry to one Ag(3), two equivalent Ag(1), and four equivalent Ag(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ag4PIO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.928
_cell_length_b   9.316
_cell_length_c   11.315
_cell_angle_alpha   71.479
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   692.500
_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  0.036  0.356  0.924  1.0
  Ag  Ag1  1  0.538  0.994  0.782  1.0
  Ag  Ag2  1  0.750  0.621  0.308  1.0
  Ag  Ag3  1  0.038  0.006  0.218  1.0
  Ag  Ag4  1  0.536  0.644  0.076  1.0
  Ag  Ag5  1  0.462  0.006  0.218  1.0
  Ag  Ag6  1  0.250  0.379  0.692  1.0
  Ag  Ag7  1  0.018  0.290  0.460  1.0
  Ag  Ag8  1  0.464  0.356  0.924  1.0
  Ag  Ag9  1  0.482  0.290  0.460  1.0
  Ag  Ag10  1  0.964  0.644  0.076  1.0
  Ag  Ag11  1  0.962  0.994  0.782  1.0
  Ag  Ag12  1  0.250  0.314  0.220  1.0
  Ag  Ag13  1  0.982  0.710  0.540  1.0
  Ag  Ag14  1  0.750  0.686  0.780  1.0
  Ag  Ag15  1  0.518  0.710  0.540  1.0
  P  P16  1  0.250  0.637  0.324  1.0
  P  P17  1  0.750  0.363  0.676  1.0
  P  P18  1  0.250  0.693  0.799  1.0
  P  P19  1  0.750  0.307  0.201  1.0
  I  I20  1  0.750  0.948  0.570  1.0
  I  I21  1  0.250  0.096  0.976  1.0
  I  I22  1  0.750  0.904  0.024  1.0
  I  I23  1  0.250  0.052  0.430  1.0
  O  O24  1  0.435  0.623  0.875  1.0
  O  O25  1  0.250  0.494  0.442  1.0
  O  O26  1  0.750  0.351  0.325  1.0
  O  O27  1  0.250  0.868  0.770  1.0
  O  O28  1  0.250  0.649  0.675  1.0
  O  O29  1  0.936  0.267  0.674  1.0
  O  O30  1  0.750  0.132  0.230  1.0
  O  O31  1  0.565  0.377  0.125  1.0
  O  O32  1  0.065  0.623  0.875  1.0
  O  O33  1  0.750  0.408  0.799  1.0
  O  O34  1  0.250  0.592  0.201  1.0
  O  O35  1  0.935  0.377  0.125  1.0
  O  O36  1  0.436  0.733  0.326  1.0
  O  O37  1  0.750  0.506  0.558  1.0
  O  O38  1  0.564  0.267  0.674  1.0
  O  O39  1  0.064  0.733  0.326  1.0
[/CIF]
.
The material structure described by Ag4I(PO4) crystallizes in the monoclinic P2_1/m space group. There are five inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to one O(6), two equivalent O(1), and one I(2) atom. In the second Ag site, Ag(2) is bonded in a distorted bent 120 degrees geometry to one O(4), one O(5), one I(1), and two equivalent I(2) atoms. In the third Ag site, Ag(3) is bonded to one O(2), one O(3), two equivalent O(5), and one I(2) atom to form distorted AgIO4 trigonal pyramids that share  a cornercorner with one P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. In the fourth Ag site, Ag(4) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(5), and one I(1) atom. In the fifth Ag site, Ag(5) is bonded in a 4-coordinate geometry to one O(6), two equivalent O(1), and one I(1) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(6), and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with three equivalent Ag(3)IO4 trigonal pyramids. In the second P site, P(2) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form PO4 tetrahedra that share  a cornercorner with one Ag(3)IO4 trigonal pyramid. There are six inequivalent O sites. In the first O site, O(6) is bonded in a 4-coordinate geometry to one Ag(5), two equivalent Ag(1), and one P(1) atom. In the second O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Ag(5), two equivalent Ag(1), and one P(2) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Ag(3), two equivalent Ag(4), and one P(1) atom. In the fourth O site, O(3) is bonded in a 4-coordinate geometry to one Ag(3), two equivalent Ag(4), and one P(2) atom. In the fifth O site, O(4) is bonded in a trigonal planar geometry to two equivalent Ag(2) and one P(2) atom. In the sixth O site, O(5) is bonded in a 4-coordinate geometry to one Ag(2), one Ag(3), one Ag(4), and one P(1) atom. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 5-coordinate geometry to one Ag(5), two equivalent Ag(2), and two equivalent Ag(4) atoms. In the second I site, I(2) is bonded in a 7-coordinate geometry to one Ag(3), two equivalent Ag(1), and four equivalent Ag(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ag4PIO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.928
_cell_length_b   9.316
_cell_length_c   11.315
_cell_angle_alpha   71.479
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   692.500
_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  0.036  0.356  0.924  1.0
  Ag  Ag1  1  0.538  0.994  0.782  1.0
  Ag  Ag2  1  0.750  0.621  0.308  1.0
  Ag  Ag3  1  0.038  0.006  0.218  1.0
  Ag  Ag4  1  0.536  0.644  0.076  1.0
  Ag  Ag5  1  0.462  0.006  0.218  1.0
  Ag  Ag6  1  0.250  0.379  0.692  1.0
  Ag  Ag7  1  0.018  0.290  0.460  1.0
  Ag  Ag8  1  0.464  0.356  0.924  1.0
  Ag  Ag9  1  0.482  0.290  0.460  1.0
  Ag  Ag10  1  0.964  0.644  0.076  1.0
  Ag  Ag11  1  0.962  0.994  0.782  1.0
  Ag  Ag12  1  0.250  0.314  0.220  1.0
  Ag  Ag13  1  0.982  0.710  0.540  1.0
  Ag  Ag14  1  0.750  0.686  0.780  1.0
  Ag  Ag15  1  0.518  0.710  0.540  1.0
  P  P16  1  0.250  0.637  0.324  1.0
  P  P17  1  0.750  0.363  0.676  1.0
  P  P18  1  0.250  0.693  0.799  1.0
  P  P19  1  0.750  0.307  0.201  1.0
  I  I20  1  0.750  0.948  0.570  1.0
  I  I21  1  0.250  0.096  0.976  1.0
  I  I22  1  0.750  0.904  0.024  1.0
  I  I23  1  0.250  0.052  0.430  1.0
  O  O24  1  0.435  0.623  0.875  1.0
  O  O25  1  0.250  0.494  0.442  1.0
  O  O26  1  0.750  0.351  0.325  1.0
  O  O27  1  0.250  0.868  0.770  1.0
  O  O28  1  0.250  0.649  0.675  1.0
  O  O29  1  0.936  0.267  0.674  1.0
  O  O30  1  0.750  0.132  0.230  1.0
  O  O31  1  0.565  0.377  0.125  1.0
  O  O32  1  0.065  0.623  0.875  1.0
  O  O33  1  0.750  0.408  0.799  1.0
  O  O34  1  0.250  0.592  0.201  1.0
  O  O35  1  0.935  0.377  0.125  1.0
  O  O36  1  0.436  0.733  0.326  1.0
  O  O37  1  0.750  0.506  0.558  1.0
  O  O38  1  0.564  0.267  0.674  1.0
  O  O39  1  0.064  0.733  0.326  1.0
[/CIF]
.