The compound described by CoAgPO4 crystallizes in the triclinic P-1 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form distorted CoO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, corners with two equivalent Co(2)O5 trigonal bipyramids,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(2), one O(4), one O(6), one O(7), and one O(8) atom to form CoO5 trigonal bipyramids that share corners with two equivalent Co(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with three equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-83°. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to one O(3), one O(5), and two equivalent O(8) atoms. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(6), and one O(7) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with three equivalent Co(1)O6 octahedra, corners with two equivalent Co(2)O5 trigonal bipyramids, and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-58°. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and corners with three equivalent Co(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 46°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Co(1) and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Ag(2), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Co(1), one Ag(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Ag(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Co(1), one Ag(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Co(2), one Ag(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Co(2), one Ag(2), and one P(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Co(2), two equivalent Ag(1), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoAgPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.754
_cell_length_b   6.608
_cell_length_c   9.622
_cell_angle_alpha   75.117
_cell_angle_beta   79.111
_cell_angle_gamma   78.943
_symmetry_Int_Tables_number   1
_cell_volume   343.218
_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
  Co  Co0  1  0.215  0.826  0.437  1.0
  Co  Co1  1  0.336  0.940  0.790  1.0
  Co  Co2  1  0.785  0.174  0.563  1.0
  Co  Co3  1  0.664  0.059  0.210  1.0
  Ag  Ag4  1  0.682  0.387  0.870  1.0
  Ag  Ag5  1  0.318  0.613  0.130  1.0
  Ag  Ag6  1  0.180  0.473  0.763  1.0
  Ag  Ag7  1  0.819  0.527  0.237  1.0
  P  P8  1  0.681  0.718  0.529  1.0
  P  P9  1  0.319  0.282  0.471  1.0
  P  P10  1  0.811  0.864  0.900  1.0
  P  P11  1  0.189  0.136  0.100  1.0
  O  O12  1  0.867  0.845  0.552  1.0
  O  O13  1  0.133  0.155  0.448  1.0
  O  O14  1  0.651  0.777  0.363  1.0
  O  O15  1  0.349  0.224  0.637  1.0
  O  O16  1  0.756  0.479  0.583  1.0
  O  O17  1  0.244  0.521  0.417  1.0
  O  O18  1  0.424  0.792  0.607  1.0
  O  O19  1  0.576  0.208  0.393  1.0
  O  O20  1  0.781  0.083  0.788  1.0
  O  O21  1  0.219  0.917  0.212  1.0
  O  O22  1  0.766  0.889  0.057  1.0
  O  O23  1  0.234  0.111  0.943  1.0
  O  O24  1  0.073  0.748  0.866  1.0
  O  O25  1  0.927  0.252  0.134  1.0
  O  O26  1  0.623  0.734  0.879  1.0
  O  O27  1  0.377  0.266  0.121  1.0
[/CIF]
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The compound described by CoAgPO4 crystallizes in the triclinic P-1 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form distorted CoO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, corners with two equivalent Co(2)O5 trigonal bipyramids,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(2), one O(4), one O(6), one O(7), and one O(8) atom to form CoO5 trigonal bipyramids that share corners with two equivalent Co(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with three equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-83°. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to one O(3), one O(5), and two equivalent O(8) atoms. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(6), and one O(7) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with three equivalent Co(1)O6 octahedra, corners with two equivalent Co(2)O5 trigonal bipyramids, and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-58°. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and corners with three equivalent Co(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 46°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Co(1) and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Ag(2), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Co(1), one Ag(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Ag(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Co(1), one Ag(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Co(2), one Ag(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Co(2), one Ag(2), and one P(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Co(2), two equivalent Ag(1), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoAgPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.754
_cell_length_b   6.608
_cell_length_c   9.622
_cell_angle_alpha   75.117
_cell_angle_beta   79.111
_cell_angle_gamma   78.943
_symmetry_Int_Tables_number   1
_cell_volume   343.218
_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
  Co  Co0  1  0.215  0.826  0.437  1.0
  Co  Co1  1  0.336  0.940  0.790  1.0
  Co  Co2  1  0.785  0.174  0.563  1.0
  Co  Co3  1  0.664  0.059  0.210  1.0
  Ag  Ag4  1  0.682  0.387  0.870  1.0
  Ag  Ag5  1  0.318  0.613  0.130  1.0
  Ag  Ag6  1  0.180  0.473  0.763  1.0
  Ag  Ag7  1  0.819  0.527  0.237  1.0
  P  P8  1  0.681  0.718  0.529  1.0
  P  P9  1  0.319  0.282  0.471  1.0
  P  P10  1  0.811  0.864  0.900  1.0
  P  P11  1  0.189  0.136  0.100  1.0
  O  O12  1  0.867  0.845  0.552  1.0
  O  O13  1  0.133  0.155  0.448  1.0
  O  O14  1  0.651  0.777  0.363  1.0
  O  O15  1  0.349  0.224  0.637  1.0
  O  O16  1  0.756  0.479  0.583  1.0
  O  O17  1  0.244  0.521  0.417  1.0
  O  O18  1  0.424  0.792  0.607  1.0
  O  O19  1  0.576  0.208  0.393  1.0
  O  O20  1  0.781  0.083  0.788  1.0
  O  O21  1  0.219  0.917  0.212  1.0
  O  O22  1  0.766  0.889  0.057  1.0
  O  O23  1  0.234  0.111  0.943  1.0
  O  O24  1  0.073  0.748  0.866  1.0
  O  O25  1  0.927  0.252  0.134  1.0
  O  O26  1  0.623  0.734  0.879  1.0
  O  O27  1  0.377  0.266  0.121  1.0
[/CIF]
.