The structure described by Ag2Cu(PO3)4 crystallizes in the monoclinic C2/c space group. Ag(1) is bonded to one O(3), one O(6), one O(7), and two equivalent O(1) atoms to form distorted AgO5 trigonal bipyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  an edgeedge with one Ag(1)O5 trigonal bipyramid, and  a faceface with one Cu(1)O6 octahedra. Cu(1) is bonded to two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms to form distorted CuO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with four equivalent P(1)O4 tetrahedra, and faces with two equivalent Ag(1)O5 trigonal bipyramids. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Cu(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent Ag(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 45-58°. In the second P site, P(2) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with three equivalent Ag(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 50°. There are seven inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(3) is bonded in a 2-coordinate geometry to one Ag(1), one Cu(1), and one P(1) atom. In the third O site, O(4) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(5) is bonded in a bent 120 degrees geometry to two equivalent P(2) atoms. In the fifth O site, O(6) is bonded in a distorted single-bond geometry to one Ag(1), one Cu(1), and one P(1) atom. In the sixth O site, O(7) is bonded in a 3-coordinate geometry to one Ag(1), one Cu(1), and one P(2) atom. In the seventh O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ag(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CuAg2(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.315
_cell_length_b   8.315
_cell_length_c   7.966
_cell_angle_alpha   86.798
_cell_angle_beta   86.798
_cell_angle_gamma   109.406
_symmetry_Int_Tables_number   1
_cell_volume   517.115
_cell_formula_units_Z   2
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
  Cu  Cu0  1  0.636  0.364  0.750  1.0
  Cu  Cu1  1  0.364  0.636  0.250  1.0
  Ag  Ag2  1  0.314  0.025  0.810  1.0
  Ag  Ag3  1  0.686  0.975  0.190  1.0
  Ag  Ag4  1  0.975  0.686  0.690  1.0
  Ag  Ag5  1  0.025  0.314  0.310  1.0
  P  P6  1  0.562  0.710  0.824  1.0
  P  P7  1  0.438  0.290  0.176  1.0
  P  P8  1  0.290  0.438  0.676  1.0
  P  P9  1  0.710  0.562  0.324  1.0
  P  P10  1  0.740  0.050  0.628  1.0
  P  P11  1  0.260  0.950  0.372  1.0
  P  P12  1  0.950  0.260  0.872  1.0
  P  P13  1  0.050  0.740  0.128  1.0
  O  O14  1  0.189  0.918  0.552  1.0
  O  O15  1  0.811  0.082  0.448  1.0
  O  O16  1  0.082  0.811  0.948  1.0
  O  O17  1  0.918  0.189  0.052  1.0
  O  O18  1  0.379  0.621  0.750  1.0
  O  O19  1  0.621  0.379  0.250  1.0
  O  O20  1  0.416  0.343  0.659  1.0
  O  O21  1  0.584  0.657  0.341  1.0
  O  O22  1  0.657  0.584  0.841  1.0
  O  O23  1  0.343  0.416  0.159  1.0
  O  O24  1  0.664  0.847  0.667  1.0
  O  O25  1  0.336  0.153  0.333  1.0
  O  O26  1  0.153  0.336  0.833  1.0
  O  O27  1  0.847  0.664  0.167  1.0
  O  O28  1  0.896  0.104  0.750  1.0
  O  O29  1  0.104  0.896  0.250  1.0
  O  O30  1  0.535  0.801  0.973  1.0
  O  O31  1  0.465  0.199  0.027  1.0
  O  O32  1  0.199  0.465  0.527  1.0
  O  O33  1  0.801  0.535  0.473  1.0
  O  O34  1  0.607  0.129  0.683  1.0
  O  O35  1  0.393  0.871  0.317  1.0
  O  O36  1  0.871  0.393  0.817  1.0
  O  O37  1  0.129  0.607  0.183  1.0
[/CIF]
.
The structure described by Ag2Cu(PO3)4 crystallizes in the monoclinic C2/c space group. Ag(1) is bonded to one O(3), one O(6), one O(7), and two equivalent O(1) atoms to form distorted AgO5 trigonal bipyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  an edgeedge with one Ag(1)O5 trigonal bipyramid, and  a faceface with one Cu(1)O6 octahedra. Cu(1) is bonded to two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms to form distorted CuO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with four equivalent P(1)O4 tetrahedra, and faces with two equivalent Ag(1)O5 trigonal bipyramids. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Cu(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent Ag(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 45-58°. In the second P site, P(2) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with three equivalent Ag(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 50°. There are seven inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(3) is bonded in a 2-coordinate geometry to one Ag(1), one Cu(1), and one P(1) atom. In the third O site, O(4) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(5) is bonded in a bent 120 degrees geometry to two equivalent P(2) atoms. In the fifth O site, O(6) is bonded in a distorted single-bond geometry to one Ag(1), one Cu(1), and one P(1) atom. In the sixth O site, O(7) is bonded in a 3-coordinate geometry to one Ag(1), one Cu(1), and one P(2) atom. In the seventh O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ag(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CuAg2(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.315
_cell_length_b   8.315
_cell_length_c   7.966
_cell_angle_alpha   86.798
_cell_angle_beta   86.798
_cell_angle_gamma   109.406
_symmetry_Int_Tables_number   1
_cell_volume   517.115
_cell_formula_units_Z   2
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
  Cu  Cu0  1  0.636  0.364  0.750  1.0
  Cu  Cu1  1  0.364  0.636  0.250  1.0
  Ag  Ag2  1  0.314  0.025  0.810  1.0
  Ag  Ag3  1  0.686  0.975  0.190  1.0
  Ag  Ag4  1  0.975  0.686  0.690  1.0
  Ag  Ag5  1  0.025  0.314  0.310  1.0
  P  P6  1  0.562  0.710  0.824  1.0
  P  P7  1  0.438  0.290  0.176  1.0
  P  P8  1  0.290  0.438  0.676  1.0
  P  P9  1  0.710  0.562  0.324  1.0
  P  P10  1  0.740  0.050  0.628  1.0
  P  P11  1  0.260  0.950  0.372  1.0
  P  P12  1  0.950  0.260  0.872  1.0
  P  P13  1  0.050  0.740  0.128  1.0
  O  O14  1  0.189  0.918  0.552  1.0
  O  O15  1  0.811  0.082  0.448  1.0
  O  O16  1  0.082  0.811  0.948  1.0
  O  O17  1  0.918  0.189  0.052  1.0
  O  O18  1  0.379  0.621  0.750  1.0
  O  O19  1  0.621  0.379  0.250  1.0
  O  O20  1  0.416  0.343  0.659  1.0
  O  O21  1  0.584  0.657  0.341  1.0
  O  O22  1  0.657  0.584  0.841  1.0
  O  O23  1  0.343  0.416  0.159  1.0
  O  O24  1  0.664  0.847  0.667  1.0
  O  O25  1  0.336  0.153  0.333  1.0
  O  O26  1  0.153  0.336  0.833  1.0
  O  O27  1  0.847  0.664  0.167  1.0
  O  O28  1  0.896  0.104  0.750  1.0
  O  O29  1  0.104  0.896  0.250  1.0
  O  O30  1  0.535  0.801  0.973  1.0
  O  O31  1  0.465  0.199  0.027  1.0
  O  O32  1  0.199  0.465  0.527  1.0
  O  O33  1  0.801  0.535  0.473  1.0
  O  O34  1  0.607  0.129  0.683  1.0
  O  O35  1  0.393  0.871  0.317  1.0
  O  O36  1  0.871  0.393  0.817  1.0
  O  O37  1  0.129  0.607  0.183  1.0
[/CIF]
.