The compound described by Co3(PO4)2 crystallizes in the monoclinic P2_1/c 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), and two equivalent O(1) atoms to form distorted CoO5 trigonal bipyramids that share  a cornercorner with one Co(2)O6 octahedra, corners with three equivalent P(1)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one Co(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 61°. In the second Co site, Co(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra, corners with two equivalent Co(1)O5 trigonal bipyramids, and edges with two equivalent Co(1)O5 trigonal bipyramids. 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(2)O6 octahedra, corners with three equivalent Co(1)O5 trigonal bipyramids, and  an edgeedge with one Co(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 37-54°. There are four 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 distorted T-shaped geometry to one Co(1), one Co(2), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), 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 Co(2), and one P(1) atom. is represented by the CIF card [CIF]
data_Co3(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.331
_cell_length_b   5.038
_cell_length_c   8.717
_cell_angle_alpha   59.223
_cell_angle_beta   90.003
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   314.345
_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  0.861  0.019  0.386  1.0
  Co  Co1  1  0.639  0.019  0.886  1.0
  Co  Co2  1  0.000  0.000  0.000  1.0
  Co  Co3  1  0.361  0.981  0.114  1.0
  Co  Co4  1  0.139  0.981  0.614  1.0
  Co  Co5  1  0.500  0.000  0.500  1.0
  P  P6  1  0.194  0.344  0.196  1.0
  P  P7  1  0.306  0.344  0.696  1.0
  P  P8  1  0.806  0.656  0.804  1.0
  P  P9  1  0.694  0.656  0.304  1.0
  O  O10  1  0.579  0.812  0.143  1.0
  O  O11  1  0.921  0.812  0.643  1.0
  O  O12  1  0.358  0.281  0.549  1.0
  O  O13  1  0.305  0.693  0.626  1.0
  O  O14  1  0.858  0.718  0.951  1.0
  O  O15  1  0.363  0.197  0.254  1.0
  O  O16  1  0.637  0.803  0.746  1.0
  O  O17  1  0.142  0.282  0.049  1.0
  O  O18  1  0.695  0.307  0.374  1.0
  O  O19  1  0.421  0.188  0.857  1.0
  O  O20  1  0.079  0.188  0.357  1.0
  O  O21  1  0.137  0.197  0.754  1.0
  O  O22  1  0.642  0.719  0.451  1.0
  O  O23  1  0.805  0.307  0.874  1.0
  O  O24  1  0.195  0.693  0.126  1.0
  O  O25  1  0.863  0.803  0.246  1.0
[/CIF]
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The compound described by Co3(PO4)2 crystallizes in the monoclinic P2_1/c 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), and two equivalent O(1) atoms to form distorted CoO5 trigonal bipyramids that share  a cornercorner with one Co(2)O6 octahedra, corners with three equivalent P(1)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one Co(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 61°. In the second Co site, Co(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra, corners with two equivalent Co(1)O5 trigonal bipyramids, and edges with two equivalent Co(1)O5 trigonal bipyramids. 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(2)O6 octahedra, corners with three equivalent Co(1)O5 trigonal bipyramids, and  an edgeedge with one Co(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 37-54°. There are four 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 distorted T-shaped geometry to one Co(1), one Co(2), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), 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 Co(2), and one P(1) atom. is represented by the CIF card [CIF]
data_Co3(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.331
_cell_length_b   5.038
_cell_length_c   8.717
_cell_angle_alpha   59.223
_cell_angle_beta   90.003
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   314.345
_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  0.861  0.019  0.386  1.0
  Co  Co1  1  0.639  0.019  0.886  1.0
  Co  Co2  1  0.000  0.000  0.000  1.0
  Co  Co3  1  0.361  0.981  0.114  1.0
  Co  Co4  1  0.139  0.981  0.614  1.0
  Co  Co5  1  0.500  0.000  0.500  1.0
  P  P6  1  0.194  0.344  0.196  1.0
  P  P7  1  0.306  0.344  0.696  1.0
  P  P8  1  0.806  0.656  0.804  1.0
  P  P9  1  0.694  0.656  0.304  1.0
  O  O10  1  0.579  0.812  0.143  1.0
  O  O11  1  0.921  0.812  0.643  1.0
  O  O12  1  0.358  0.281  0.549  1.0
  O  O13  1  0.305  0.693  0.626  1.0
  O  O14  1  0.858  0.718  0.951  1.0
  O  O15  1  0.363  0.197  0.254  1.0
  O  O16  1  0.637  0.803  0.746  1.0
  O  O17  1  0.142  0.282  0.049  1.0
  O  O18  1  0.695  0.307  0.374  1.0
  O  O19  1  0.421  0.188  0.857  1.0
  O  O20  1  0.079  0.188  0.357  1.0
  O  O21  1  0.137  0.197  0.754  1.0
  O  O22  1  0.642  0.719  0.451  1.0
  O  O23  1  0.805  0.307  0.874  1.0
  O  O24  1  0.195  0.693  0.126  1.0
  O  O25  1  0.863  0.803  0.246  1.0
[/CIF]
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