The compound described by BaCo2(PO4)2 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent O(4), four equivalent O(1), and four equivalent O(2) atoms. Co(1) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form distorted CoO5 trigonal bipyramids that share corners with three equivalent P(1)O4 tetrahedra, corners with two equivalent Co(1)O5 trigonal bipyramids, and  an edgeedge with one P(1)O4 tetrahedra. 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)O5 trigonal bipyramids and  an edgeedge with one Co(1)O5 trigonal bipyramid. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ba(1), one Co(1), and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Co(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Ba(1), one Co(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaCo2(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.050
_cell_length_b   8.258
_cell_length_c   9.337
_cell_angle_alpha   92.386
_cell_angle_beta   90.004
_cell_angle_gamma   90.003
_symmetry_Int_Tables_number   1
_cell_volume   388.996
_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
  Ba  Ba0  1  0.500  0.000  0.500  1.0
  Ba  Ba1  1  0.000  1.000  0.000  1.0
  Co  Co2  1  0.067  0.350  0.707  1.0
  Co  Co3  1  0.933  0.650  0.293  1.0
  Co  Co4  1  0.567  0.650  0.793  1.0
  Co  Co5  1  0.433  0.350  0.207  1.0
  P  P6  1  0.495  0.735  0.136  1.0
  P  P7  1  0.995  0.265  0.364  1.0
  P  P8  1  0.505  0.265  0.864  1.0
  P  P9  1  0.005  0.735  0.636  1.0
  O  O10  1  0.851  0.857  0.734  1.0
  O  O11  1  0.351  0.143  0.766  1.0
  O  O12  1  0.149  0.143  0.266  1.0
  O  O13  1  0.649  0.857  0.234  1.0
  O  O14  1  0.556  0.776  0.978  1.0
  O  O15  1  0.056  0.224  0.522  1.0
  O  O16  1  0.444  0.224  0.022  1.0
  O  O17  1  0.944  0.776  0.478  1.0
  O  O18  1  0.612  0.564  0.174  1.0
  O  O19  1  0.112  0.436  0.326  1.0
  O  O20  1  0.388  0.436  0.826  1.0
  O  O21  1  0.888  0.564  0.674  1.0
  O  O22  1  0.308  0.741  0.655  1.0
  O  O23  1  0.808  0.259  0.845  1.0
  O  O24  1  0.692  0.259  0.345  1.0
  O  O25  1  0.192  0.741  0.155  1.0
[/CIF]
.
The compound described by BaCo2(PO4)2 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent O(4), four equivalent O(1), and four equivalent O(2) atoms. Co(1) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form distorted CoO5 trigonal bipyramids that share corners with three equivalent P(1)O4 tetrahedra, corners with two equivalent Co(1)O5 trigonal bipyramids, and  an edgeedge with one P(1)O4 tetrahedra. 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)O5 trigonal bipyramids and  an edgeedge with one Co(1)O5 trigonal bipyramid. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ba(1), one Co(1), and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Co(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Ba(1), one Co(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaCo2(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.050
_cell_length_b   8.258
_cell_length_c   9.337
_cell_angle_alpha   92.386
_cell_angle_beta   90.004
_cell_angle_gamma   90.003
_symmetry_Int_Tables_number   1
_cell_volume   388.996
_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
  Ba  Ba0  1  0.500  0.000  0.500  1.0
  Ba  Ba1  1  0.000  1.000  0.000  1.0
  Co  Co2  1  0.067  0.350  0.707  1.0
  Co  Co3  1  0.933  0.650  0.293  1.0
  Co  Co4  1  0.567  0.650  0.793  1.0
  Co  Co5  1  0.433  0.350  0.207  1.0
  P  P6  1  0.495  0.735  0.136  1.0
  P  P7  1  0.995  0.265  0.364  1.0
  P  P8  1  0.505  0.265  0.864  1.0
  P  P9  1  0.005  0.735  0.636  1.0
  O  O10  1  0.851  0.857  0.734  1.0
  O  O11  1  0.351  0.143  0.766  1.0
  O  O12  1  0.149  0.143  0.266  1.0
  O  O13  1  0.649  0.857  0.234  1.0
  O  O14  1  0.556  0.776  0.978  1.0
  O  O15  1  0.056  0.224  0.522  1.0
  O  O16  1  0.444  0.224  0.022  1.0
  O  O17  1  0.944  0.776  0.478  1.0
  O  O18  1  0.612  0.564  0.174  1.0
  O  O19  1  0.112  0.436  0.326  1.0
  O  O20  1  0.388  0.436  0.826  1.0
  O  O21  1  0.888  0.564  0.674  1.0
  O  O22  1  0.308  0.741  0.655  1.0
  O  O23  1  0.808  0.259  0.845  1.0
  O  O24  1  0.692  0.259  0.345  1.0
  O  O25  1  0.192  0.741  0.155  1.0
[/CIF]
.