The compound described by CoCu3(PO4)4 crystallizes in the monoclinic Pm space group. Co(1) is bonded to one O(1), one O(9), two equivalent O(11), and two equivalent O(5) atoms to form distorted CoO6 pentagonal pyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(12), one O(4), and two equivalent O(2) atoms. In the second Cu site, Cu(2) is bonded in a rectangular see-saw-like geometry to one O(3), one O(7), and two equivalent O(5) atoms. In the third Cu site, Cu(3) is bonded in a rectangular see-saw-like geometry to one O(10), one O(6), and two equivalent O(8) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), and two equivalent O(2) atoms to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 pentagonal pyramid. In the second P site, P(2) is bonded to one O(6), one O(9), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 pentagonal pyramid and  an edgeedge with one Co(1)O6 pentagonal pyramid. In the third P site, P(3) is bonded in a tetrahedral geometry to one O(4), one O(7), and two equivalent O(8) atoms. In the fourth P site, P(4) is bonded to one O(12), one O(3), and two equivalent O(11) atoms to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 pentagonal pyramids. There are twelve 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 Cu(2) and one P(4) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Cu(1) and one P(3) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Co(1), one Cu(2), and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Cu(3) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Cu(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Cu(3) and one P(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(2) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Cu(3) and one P(1) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Co(1) and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one P(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoCu3(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.986
_cell_length_b   5.133
_cell_length_c   9.998
_cell_angle_alpha   87.072
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   306.808
_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
  Co  Co0  1  0.000  0.065  0.707  1.0
  Cu  Cu1  1  0.500  0.877  0.310  1.0
  Cu  Cu2  1  0.500  0.645  0.808  1.0
  Cu  Cu3  1  0.000  0.369  0.189  1.0
  P  P4  1  0.000  0.920  0.395  1.0
  P  P5  1  0.000  0.566  0.892  1.0
  P  P6  1  0.500  0.446  0.111  1.0
  P  P7  1  0.500  0.077  0.603  1.0
  O  O8  1  0.000  0.865  0.548  1.0
  O  O9  1  0.200  0.779  0.329  1.0
  O  O10  1  0.800  0.779  0.329  1.0
  O  O11  1  0.500  0.777  0.634  1.0
  O  O12  1  0.500  0.739  0.139  1.0
  O  O13  1  0.193  0.734  0.822  1.0
  O  O14  1  0.807  0.734  0.822  1.0
  O  O15  1  0.000  0.611  0.045  1.0
  O  O16  1  0.500  0.420  0.957  1.0
  O  O17  1  0.698  0.287  0.175  1.0
  O  O18  1  0.302  0.287  0.175  1.0
  O  O19  1  0.000  0.277  0.868  1.0
  O  O20  1  0.000  0.218  0.364  1.0
  O  O21  1  0.708  0.209  0.664  1.0
  O  O22  1  0.292  0.209  0.664  1.0
  O  O23  1  0.500  0.111  0.448  1.0
[/CIF]
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The compound described by CoCu3(PO4)4 crystallizes in the monoclinic Pm space group. Co(1) is bonded to one O(1), one O(9), two equivalent O(11), and two equivalent O(5) atoms to form distorted CoO6 pentagonal pyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(12), one O(4), and two equivalent O(2) atoms. In the second Cu site, Cu(2) is bonded in a rectangular see-saw-like geometry to one O(3), one O(7), and two equivalent O(5) atoms. In the third Cu site, Cu(3) is bonded in a rectangular see-saw-like geometry to one O(10), one O(6), and two equivalent O(8) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), and two equivalent O(2) atoms to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 pentagonal pyramid. In the second P site, P(2) is bonded to one O(6), one O(9), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 pentagonal pyramid and  an edgeedge with one Co(1)O6 pentagonal pyramid. In the third P site, P(3) is bonded in a tetrahedral geometry to one O(4), one O(7), and two equivalent O(8) atoms. In the fourth P site, P(4) is bonded to one O(12), one O(3), and two equivalent O(11) atoms to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 pentagonal pyramids. There are twelve 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 Cu(2) and one P(4) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Cu(1) and one P(3) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Co(1), one Cu(2), and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Cu(3) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Cu(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Cu(3) and one P(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(2) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Cu(3) and one P(1) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Co(1) and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one P(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoCu3(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.986
_cell_length_b   5.133
_cell_length_c   9.998
_cell_angle_alpha   87.072
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   306.808
_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
  Co  Co0  1  0.000  0.065  0.707  1.0
  Cu  Cu1  1  0.500  0.877  0.310  1.0
  Cu  Cu2  1  0.500  0.645  0.808  1.0
  Cu  Cu3  1  0.000  0.369  0.189  1.0
  P  P4  1  0.000  0.920  0.395  1.0
  P  P5  1  0.000  0.566  0.892  1.0
  P  P6  1  0.500  0.446  0.111  1.0
  P  P7  1  0.500  0.077  0.603  1.0
  O  O8  1  0.000  0.865  0.548  1.0
  O  O9  1  0.200  0.779  0.329  1.0
  O  O10  1  0.800  0.779  0.329  1.0
  O  O11  1  0.500  0.777  0.634  1.0
  O  O12  1  0.500  0.739  0.139  1.0
  O  O13  1  0.193  0.734  0.822  1.0
  O  O14  1  0.807  0.734  0.822  1.0
  O  O15  1  0.000  0.611  0.045  1.0
  O  O16  1  0.500  0.420  0.957  1.0
  O  O17  1  0.698  0.287  0.175  1.0
  O  O18  1  0.302  0.287  0.175  1.0
  O  O19  1  0.000  0.277  0.868  1.0
  O  O20  1  0.000  0.218  0.364  1.0
  O  O21  1  0.708  0.209  0.664  1.0
  O  O22  1  0.292  0.209  0.664  1.0
  O  O23  1  0.500  0.111  0.448  1.0
[/CIF]
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