The material described by CsCoPO4 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 10-coordinate geometry to one O(1), one O(5), one O(6), one O(8), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms. In the second Cs site, Cs(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(5), one O(6), and one O(8) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(5), and one O(7) atom to form CoO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(1), one O(4), one O(6), and one O(8) atom to form CoO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. 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(7) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra and corners with three equivalent Co(1)O4 tetrahedra. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra and corners with three equivalent Co(2)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Cs(1), one Cs(2), one Co(2), and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cs(2), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Co(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Co(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Cs(1), one Cs(2), one Co(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Cs(1), one Cs(2), one Co(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Co(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Cs(1), one Cs(2), one Co(2), and one P(2) atom. is represented by the CIF card [CIF]
data_CsCoPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.458
_cell_length_b   9.214
_cell_length_c   9.263
_cell_angle_alpha   89.737
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   465.806
_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
  Cs  Cs0  1  0.997  0.001  0.192  1.0
  Cs  Cs1  1  0.497  0.999  0.808  1.0
  Cs  Cs2  1  0.040  0.506  0.291  1.0
  Cs  Cs3  1  0.540  0.494  0.709  1.0
  Co  Co4  1  0.537  0.322  0.082  1.0
  Co  Co5  1  0.037  0.678  0.918  1.0
  Co  Co6  1  0.996  0.167  0.589  1.0
  Co  Co7  1  0.496  0.833  0.411  1.0
  P  P8  1  0.531  0.692  0.084  1.0
  P  P9  1  0.031  0.308  0.916  1.0
  P  P10  1  0.497  0.192  0.406  1.0
  P  P11  1  0.997  0.808  0.594  1.0
  O  O12  1  0.092  0.279  0.757  1.0
  O  O13  1  0.592  0.721  0.243  1.0
  O  O14  1  0.016  0.470  0.942  1.0
  O  O15  1  0.516  0.530  0.058  1.0
  O  O16  1  0.230  0.239  0.013  1.0
  O  O17  1  0.730  0.761  0.987  1.0
  O  O18  1  0.517  0.035  0.351  1.0
  O  O19  1  0.017  0.965  0.649  1.0
  O  O20  1  0.588  0.295  0.287  1.0
  O  O21  1  0.088  0.705  0.713  1.0
  O  O22  1  0.228  0.228  0.441  1.0
  O  O23  1  0.728  0.772  0.559  1.0
  O  O24  1  0.283  0.763  0.045  1.0
  O  O25  1  0.783  0.237  0.955  1.0
  O  O26  1  0.656  0.214  0.542  1.0
  O  O27  1  0.156  0.786  0.458  1.0
[/CIF]
.
The material described by CsCoPO4 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 10-coordinate geometry to one O(1), one O(5), one O(6), one O(8), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms. In the second Cs site, Cs(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(5), one O(6), and one O(8) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(5), and one O(7) atom to form CoO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(1), one O(4), one O(6), and one O(8) atom to form CoO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. 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(7) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra and corners with three equivalent Co(1)O4 tetrahedra. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra and corners with three equivalent Co(2)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Cs(1), one Cs(2), one Co(2), and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cs(2), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Co(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Co(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Cs(1), one Cs(2), one Co(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Cs(1), one Cs(2), one Co(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to two equivalent Cs(1), one Co(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Cs(1), one Cs(2), one Co(2), and one P(2) atom. is represented by the CIF card [CIF]
data_CsCoPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.458
_cell_length_b   9.214
_cell_length_c   9.263
_cell_angle_alpha   89.737
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   465.806
_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
  Cs  Cs0  1  0.997  0.001  0.192  1.0
  Cs  Cs1  1  0.497  0.999  0.808  1.0
  Cs  Cs2  1  0.040  0.506  0.291  1.0
  Cs  Cs3  1  0.540  0.494  0.709  1.0
  Co  Co4  1  0.537  0.322  0.082  1.0
  Co  Co5  1  0.037  0.678  0.918  1.0
  Co  Co6  1  0.996  0.167  0.589  1.0
  Co  Co7  1  0.496  0.833  0.411  1.0
  P  P8  1  0.531  0.692  0.084  1.0
  P  P9  1  0.031  0.308  0.916  1.0
  P  P10  1  0.497  0.192  0.406  1.0
  P  P11  1  0.997  0.808  0.594  1.0
  O  O12  1  0.092  0.279  0.757  1.0
  O  O13  1  0.592  0.721  0.243  1.0
  O  O14  1  0.016  0.470  0.942  1.0
  O  O15  1  0.516  0.530  0.058  1.0
  O  O16  1  0.230  0.239  0.013  1.0
  O  O17  1  0.730  0.761  0.987  1.0
  O  O18  1  0.517  0.035  0.351  1.0
  O  O19  1  0.017  0.965  0.649  1.0
  O  O20  1  0.588  0.295  0.287  1.0
  O  O21  1  0.088  0.705  0.713  1.0
  O  O22  1  0.228  0.228  0.441  1.0
  O  O23  1  0.728  0.772  0.559  1.0
  O  O24  1  0.283  0.763  0.045  1.0
  O  O25  1  0.783  0.237  0.955  1.0
  O  O26  1  0.656  0.214  0.542  1.0
  O  O27  1  0.156  0.786  0.458  1.0
[/CIF]
.