The crystal structure described by K2Co(PO3)4 crystallizes in the monoclinic Cc space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(4), one O(6), and one O(8) atom. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(2), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. Co(1) is bonded to one O(11), one O(12), one O(2), one O(5), one O(8), and one O(9) atom to form CoO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent P(4)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(11), one O(12), and one O(3) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 47-55°. In the second P site, P(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 36°. In the third P site, P(3) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles are 42°. In the fourth P site, P(4) is bonded to one O(10), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 46-51°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one K(2), one Co(1), and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one K(1), one P(2), and one P(3) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one K(2), one Co(1), and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(3) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one K(2), one P(3), and one P(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Co(1), and one P(4) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one K(2), one Co(1), and one P(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one P(1) and one P(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Co(1), and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Co(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.507
_cell_length_b   8.507
_cell_length_c   7.776
_cell_angle_alpha   81.570
_cell_angle_beta   81.570
_cell_angle_gamma   97.022
_symmetry_Int_Tables_number   1
_cell_volume   544.711
_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
  K  K0  1  0.493  0.241  0.080  1.0
  K  K1  1  0.241  0.493  0.580  1.0
  K  K2  1  0.530  0.797  0.916  1.0
  K  K3  1  0.797  0.530  0.416  1.0
  Co  Co4  1  0.846  0.153  0.750  1.0
  Co  Co5  1  0.153  0.846  0.249  1.0
  P  P6  1  0.182  0.030  0.835  1.0
  P  P7  1  0.030  0.182  0.335  1.0
  P  P8  1  0.495  0.172  0.574  1.0
  P  P9  1  0.172  0.495  0.074  1.0
  P  P10  1  0.493  0.868  0.419  1.0
  P  P11  1  0.868  0.493  0.919  1.0
  P  P12  1  0.811  0.965  0.180  1.0
  P  P13  1  0.965  0.811  0.680  1.0
  O  O14  1  0.509  0.340  0.479  1.0
  O  O15  1  0.340  0.509  0.979  1.0
  O  O16  1  0.603  0.130  0.707  1.0
  O  O17  1  0.130  0.603  0.207  1.0
  O  O18  1  0.310  0.120  0.666  1.0
  O  O19  1  0.120  0.310  0.166  1.0
  O  O20  1  0.508  0.059  0.422  1.0
  O  O21  1  0.059  0.508  0.922  1.0
  O  O22  1  0.388  0.833  0.285  1.0
  O  O23  1  0.833  0.388  0.785  1.0
  O  O24  1  0.458  0.767  0.598  1.0
  O  O25  1  0.767  0.458  0.098  1.0
  O  O26  1  0.676  0.853  0.333  1.0
  O  O27  1  0.853  0.676  0.833  1.0
  O  O28  1  0.731  0.027  0.028  1.0
  O  O29  1  0.027  0.731  0.528  1.0
  O  O30  1  0.941  0.861  0.155  1.0
  O  O31  1  0.861  0.941  0.655  1.0
  O  O32  1  0.866  0.116  0.271  1.0
  O  O33  1  0.116  0.866  0.771  1.0
  O  O34  1  0.269  0.982  0.986  1.0
  O  O35  1  0.982  0.269  0.486  1.0
  O  O36  1  0.056  0.138  0.853  1.0
  O  O37  1  0.138  0.056  0.353  1.0
[/CIF]
.
The crystal structure described by K2Co(PO3)4 crystallizes in the monoclinic Cc space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(4), one O(6), and one O(8) atom. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(2), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. Co(1) is bonded to one O(11), one O(12), one O(2), one O(5), one O(8), and one O(9) atom to form CoO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent P(4)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(11), one O(12), and one O(3) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 47-55°. In the second P site, P(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 36°. In the third P site, P(3) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles are 42°. In the fourth P site, P(4) is bonded to one O(10), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 46-51°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one K(2), one Co(1), and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one K(1), one P(2), and one P(3) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one K(2), one Co(1), and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(3) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one K(2), one P(3), and one P(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Co(1), and one P(4) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one K(2), one Co(1), and one P(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one P(1) and one P(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Co(1), and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Co(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.507
_cell_length_b   8.507
_cell_length_c   7.776
_cell_angle_alpha   81.570
_cell_angle_beta   81.570
_cell_angle_gamma   97.022
_symmetry_Int_Tables_number   1
_cell_volume   544.711
_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
  K  K0  1  0.493  0.241  0.080  1.0
  K  K1  1  0.241  0.493  0.580  1.0
  K  K2  1  0.530  0.797  0.916  1.0
  K  K3  1  0.797  0.530  0.416  1.0
  Co  Co4  1  0.846  0.153  0.750  1.0
  Co  Co5  1  0.153  0.846  0.249  1.0
  P  P6  1  0.182  0.030  0.835  1.0
  P  P7  1  0.030  0.182  0.335  1.0
  P  P8  1  0.495  0.172  0.574  1.0
  P  P9  1  0.172  0.495  0.074  1.0
  P  P10  1  0.493  0.868  0.419  1.0
  P  P11  1  0.868  0.493  0.919  1.0
  P  P12  1  0.811  0.965  0.180  1.0
  P  P13  1  0.965  0.811  0.680  1.0
  O  O14  1  0.509  0.340  0.479  1.0
  O  O15  1  0.340  0.509  0.979  1.0
  O  O16  1  0.603  0.130  0.707  1.0
  O  O17  1  0.130  0.603  0.207  1.0
  O  O18  1  0.310  0.120  0.666  1.0
  O  O19  1  0.120  0.310  0.166  1.0
  O  O20  1  0.508  0.059  0.422  1.0
  O  O21  1  0.059  0.508  0.922  1.0
  O  O22  1  0.388  0.833  0.285  1.0
  O  O23  1  0.833  0.388  0.785  1.0
  O  O24  1  0.458  0.767  0.598  1.0
  O  O25  1  0.767  0.458  0.098  1.0
  O  O26  1  0.676  0.853  0.333  1.0
  O  O27  1  0.853  0.676  0.833  1.0
  O  O28  1  0.731  0.027  0.028  1.0
  O  O29  1  0.027  0.731  0.528  1.0
  O  O30  1  0.941  0.861  0.155  1.0
  O  O31  1  0.861  0.941  0.655  1.0
  O  O32  1  0.866  0.116  0.271  1.0
  O  O33  1  0.116  0.866  0.771  1.0
  O  O34  1  0.269  0.982  0.986  1.0
  O  O35  1  0.982  0.269  0.486  1.0
  O  O36  1  0.056  0.138  0.853  1.0
  O  O37  1  0.138  0.056  0.353  1.0
[/CIF]
.