The structure described by CoCu(PO4)2 crystallizes in the monoclinic P2_1/m space group. Co(1) is bonded to one O(1), one O(5), two equivalent O(3), and two equivalent O(4) atoms to form distorted CoO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. Cu(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(6), and two equivalent O(4) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form PO4 tetrahedra that share corners with three equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-50°. In the second P site, P(2) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 47°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cu(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Co(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one Cu(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Cu(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoCu(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.915
_cell_length_b   4.995
_cell_length_c   10.005
_cell_angle_alpha   85.764
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   294.789
_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
  Co  Co0  1  0.750  0.441  0.789  1.0
  Co  Co1  1  0.250  0.559  0.211  1.0
  Cu  Cu2  1  0.250  0.867  0.696  1.0
  Cu  Cu3  1  0.750  0.133  0.304  1.0
  P  P4  1  0.250  0.404  0.899  1.0
  P  P5  1  0.750  0.939  0.604  1.0
  P  P6  1  0.250  0.061  0.396  1.0
  P  P7  1  0.750  0.596  0.101  1.0
  O  O8  1  0.750  0.654  0.949  1.0
  O  O9  1  0.250  0.716  0.870  1.0
  O  O10  1  0.038  0.282  0.833  1.0
  O  O11  1  0.462  0.282  0.833  1.0
  O  O12  1  0.555  0.767  0.676  1.0
  O  O13  1  0.945  0.767  0.676  1.0
  O  O14  1  0.750  0.235  0.624  1.0
  O  O15  1  0.250  0.111  0.548  1.0
  O  O16  1  0.750  0.889  0.452  1.0
  O  O17  1  0.250  0.764  0.376  1.0
  O  O18  1  0.055  0.233  0.324  1.0
  O  O19  1  0.445  0.233  0.324  1.0
  O  O20  1  0.538  0.718  0.167  1.0
  O  O21  1  0.962  0.718  0.167  1.0
  O  O22  1  0.750  0.284  0.130  1.0
  O  O23  1  0.250  0.346  0.051  1.0
[/CIF]
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The structure described by CoCu(PO4)2 crystallizes in the monoclinic P2_1/m space group. Co(1) is bonded to one O(1), one O(5), two equivalent O(3), and two equivalent O(4) atoms to form distorted CoO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. Cu(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(6), and two equivalent O(4) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form PO4 tetrahedra that share corners with three equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-50°. In the second P site, P(2) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 47°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cu(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Co(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one Cu(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Cu(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoCu(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.915
_cell_length_b   4.995
_cell_length_c   10.005
_cell_angle_alpha   85.764
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   294.789
_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
  Co  Co0  1  0.750  0.441  0.789  1.0
  Co  Co1  1  0.250  0.559  0.211  1.0
  Cu  Cu2  1  0.250  0.867  0.696  1.0
  Cu  Cu3  1  0.750  0.133  0.304  1.0
  P  P4  1  0.250  0.404  0.899  1.0
  P  P5  1  0.750  0.939  0.604  1.0
  P  P6  1  0.250  0.061  0.396  1.0
  P  P7  1  0.750  0.596  0.101  1.0
  O  O8  1  0.750  0.654  0.949  1.0
  O  O9  1  0.250  0.716  0.870  1.0
  O  O10  1  0.038  0.282  0.833  1.0
  O  O11  1  0.462  0.282  0.833  1.0
  O  O12  1  0.555  0.767  0.676  1.0
  O  O13  1  0.945  0.767  0.676  1.0
  O  O14  1  0.750  0.235  0.624  1.0
  O  O15  1  0.250  0.111  0.548  1.0
  O  O16  1  0.750  0.889  0.452  1.0
  O  O17  1  0.250  0.764  0.376  1.0
  O  O18  1  0.055  0.233  0.324  1.0
  O  O19  1  0.445  0.233  0.324  1.0
  O  O20  1  0.538  0.718  0.167  1.0
  O  O21  1  0.962  0.718  0.167  1.0
  O  O22  1  0.750  0.284  0.130  1.0
  O  O23  1  0.250  0.346  0.051  1.0
[/CIF]
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