The compound described by K2CoP4(HO2)8 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 7-coordinate geometry to one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(2) atoms. Co(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form CoO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two 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(4) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. In the second P site, P(2) is bonded to one O(1), 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 and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 50°. There are four inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(4) and one O(7) atom. In the second H site, H(2) is bonded in a linear geometry to one O(3) and one O(6) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(3) and one O(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent K(1), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one P(1), one H(2), and one H(3) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one K(1), one P(1), and one H(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one Co(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one K(1), one P(2), and one H(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one K(1), one P(2), and one H(1) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one K(1), one Co(1), one H(3), and one H(4) atom. is represented by the CIF file [CIF]
data_K2CoP4(HO2)8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.801
_cell_length_b   7.312
_cell_length_c   7.470
_cell_angle_alpha   80.112
_cell_angle_beta   72.526
_cell_angle_gamma   83.345
_symmetry_Int_Tables_number   1
_cell_volume   348.237
_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
  K  K0  1  0.107  0.737  0.307  1.0
  K  K1  1  0.893  0.263  0.693  1.0
  Co  Co2  1  0.500  0.500  0.500  1.0
  P  P3  1  0.679  0.726  0.758  1.0
  P  P4  1  0.321  0.274  0.242  1.0
  P  P5  1  0.249  0.812  0.764  1.0
  P  P6  1  0.751  0.188  0.236  1.0
  H  H7  1  0.754  0.955  0.529  1.0
  H  H8  1  0.246  0.045  0.471  1.0
  H  H9  1  0.944  0.727  0.935  1.0
  H  H10  1  0.056  0.273  0.065  1.0
  H  H11  1  0.373  0.323  0.856  1.0
  H  H12  1  0.627  0.677  0.144  1.0
  H  H13  1  0.386  0.183  0.711  1.0
  H  H14  1  0.614  0.817  0.289  1.0
  O  O15  1  0.438  0.769  0.855  1.0
  O  O16  1  0.562  0.231  0.145  1.0
  O  O17  1  0.707  0.604  0.609  1.0
  O  O18  1  0.293  0.396  0.391  1.0
  O  O19  1  0.764  0.648  0.921  1.0
  O  O20  1  0.236  0.352  0.079  1.0
  O  O21  1  0.770  0.918  0.664  1.0
  O  O22  1  0.230  0.082  0.336  1.0
  O  O23  1  0.256  0.673  0.636  1.0
  O  O24  1  0.744  0.327  0.364  1.0
  O  O25  1  0.066  0.790  0.947  1.0
  O  O26  1  0.934  0.210  0.053  1.0
  O  O27  1  0.258  0.012  0.668  1.0
  O  O28  1  0.742  0.988  0.332  1.0
  O  O29  1  0.449  0.291  0.729  1.0
  O  O30  1  0.551  0.709  0.271  1.0
[/CIF]
.
The compound described by K2CoP4(HO2)8 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 7-coordinate geometry to one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(2) atoms. Co(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form CoO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two 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(4) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. In the second P site, P(2) is bonded to one O(1), 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 and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 50°. There are four inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(4) and one O(7) atom. In the second H site, H(2) is bonded in a linear geometry to one O(3) and one O(6) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(3) and one O(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent K(1), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one P(1), one H(2), and one H(3) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one K(1), one P(1), and one H(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one Co(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one K(1), one P(2), and one H(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one K(1), one P(2), and one H(1) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one K(1), one Co(1), one H(3), and one H(4) atom. is represented by the CIF file [CIF]
data_K2CoP4(HO2)8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.801
_cell_length_b   7.312
_cell_length_c   7.470
_cell_angle_alpha   80.112
_cell_angle_beta   72.526
_cell_angle_gamma   83.345
_symmetry_Int_Tables_number   1
_cell_volume   348.237
_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
  K  K0  1  0.107  0.737  0.307  1.0
  K  K1  1  0.893  0.263  0.693  1.0
  Co  Co2  1  0.500  0.500  0.500  1.0
  P  P3  1  0.679  0.726  0.758  1.0
  P  P4  1  0.321  0.274  0.242  1.0
  P  P5  1  0.249  0.812  0.764  1.0
  P  P6  1  0.751  0.188  0.236  1.0
  H  H7  1  0.754  0.955  0.529  1.0
  H  H8  1  0.246  0.045  0.471  1.0
  H  H9  1  0.944  0.727  0.935  1.0
  H  H10  1  0.056  0.273  0.065  1.0
  H  H11  1  0.373  0.323  0.856  1.0
  H  H12  1  0.627  0.677  0.144  1.0
  H  H13  1  0.386  0.183  0.711  1.0
  H  H14  1  0.614  0.817  0.289  1.0
  O  O15  1  0.438  0.769  0.855  1.0
  O  O16  1  0.562  0.231  0.145  1.0
  O  O17  1  0.707  0.604  0.609  1.0
  O  O18  1  0.293  0.396  0.391  1.0
  O  O19  1  0.764  0.648  0.921  1.0
  O  O20  1  0.236  0.352  0.079  1.0
  O  O21  1  0.770  0.918  0.664  1.0
  O  O22  1  0.230  0.082  0.336  1.0
  O  O23  1  0.256  0.673  0.636  1.0
  O  O24  1  0.744  0.327  0.364  1.0
  O  O25  1  0.066  0.790  0.947  1.0
  O  O26  1  0.934  0.210  0.053  1.0
  O  O27  1  0.258  0.012  0.668  1.0
  O  O28  1  0.742  0.988  0.332  1.0
  O  O29  1  0.449  0.291  0.729  1.0
  O  O30  1  0.551  0.709  0.271  1.0
[/CIF]
.