The crystal structure described by KPO4 crystallizes in the monoclinic P2_1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(13), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(1), one O(12), one O(16), one O(3), one O(4), one O(6), and one O(7) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(15), one O(2), one O(5), and one O(6) atom. In the fourth K site, K(4) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(14), one O(15), one O(4), one O(8), and one O(9) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. In the third P site, P(3) is bonded in a tetrahedral geometry to one O(10), one O(11), one O(12), and one O(9) atom. In the fourth P site, P(4) is bonded in a tetrahedral geometry to one O(13), one O(14), one O(15), and one O(16) atom. There are sixteen 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(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(3) and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(2), one K(4), and one P(1) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one K(1), one K(3), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(1), one K(4), and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one K(4) and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one K(1), one K(4), and one P(3) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one P(3) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one K(2), one K(3), one K(4), and one P(3) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one K(1), one K(3), and one P(4) atom. In the fourteenth O site, O(14) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one P(4) atom. In the fifteenth O site, O(15) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one P(4) atom. In the sixteenth O site, O(16) is bonded in a distorted single-bond geometry to one K(2) and one P(4) atom. is represented by the CIF file [CIF]
data_KPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.890
_cell_length_b   7.358
_cell_length_c   7.730
_cell_angle_alpha   88.311
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   846.471
_cell_formula_units_Z   8
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  0.618  0.365  0.774  1.0
  K  K1  1  0.118  0.635  0.226  1.0
  K  K2  1  0.612  0.671  0.276  1.0
  K  K3  1  0.112  0.329  0.724  1.0
  K  K4  1  0.896  0.207  0.364  1.0
  K  K5  1  0.396  0.793  0.636  1.0
  K  K6  1  0.880  0.907  0.865  1.0
  K  K7  1  0.380  0.093  0.135  1.0
  P  P8  1  0.633  0.179  0.269  1.0
  P  P9  1  0.133  0.821  0.731  1.0
  P  P10  1  0.628  0.869  0.776  1.0
  P  P11  1  0.128  0.131  0.224  1.0
  P  P12  1  0.873  0.405  0.864  1.0
  P  P13  1  0.373  0.595  0.136  1.0
  P  P14  1  0.866  0.714  0.364  1.0
  P  P15  1  0.366  0.286  0.636  1.0
  O  O16  1  0.663  0.316  0.125  1.0
  O  O17  1  0.163  0.684  0.875  1.0
  O  O18  1  0.716  0.085  0.354  1.0
  O  O19  1  0.216  0.915  0.646  1.0
  O  O20  1  0.589  0.288  0.414  1.0
  O  O21  1  0.089  0.712  0.586  1.0
  O  O22  1  0.567  0.040  0.196  1.0
  O  O23  1  0.067  0.960  0.804  1.0
  O  O24  1  0.546  0.978  0.837  1.0
  O  O25  1  0.046  0.022  0.163  1.0
  O  O26  1  0.593  0.747  0.634  1.0
  O  O27  1  0.093  0.253  0.366  1.0
  O  O28  1  0.669  0.757  0.930  1.0
  O  O29  1  0.169  0.243  0.070  1.0
  O  O30  1  0.707  0.994  0.720  1.0
  O  O31  1  0.207  0.006  0.280  1.0
  O  O32  1  0.947  0.532  0.935  1.0
  O  O33  1  0.447  0.468  0.065  1.0
  O  O34  1  0.792  0.513  0.790  1.0
  O  O35  1  0.292  0.487  0.210  1.0
  O  O36  1  0.843  0.276  0.014  1.0
  O  O37  1  0.343  0.724  0.986  1.0
  O  O38  1  0.913  0.295  0.717  1.0
  O  O39  1  0.413  0.705  0.283  1.0
  O  O40  1  0.938  0.582  0.300  1.0
  O  O41  1  0.438  0.418  0.700  1.0
  O  O42  1  0.908  0.830  0.507  1.0
  O  O43  1  0.408  0.170  0.493  1.0
  O  O44  1  0.832  0.841  0.215  1.0
  O  O45  1  0.332  0.159  0.785  1.0
  O  O46  1  0.784  0.605  0.432  1.0
  O  O47  1  0.284  0.395  0.568  1.0
[/CIF]
.
The crystal structure described by KPO4 crystallizes in the monoclinic P2_1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(13), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(1), one O(12), one O(16), one O(3), one O(4), one O(6), and one O(7) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(15), one O(2), one O(5), and one O(6) atom. In the fourth K site, K(4) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(14), one O(15), one O(4), one O(8), and one O(9) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. In the third P site, P(3) is bonded in a tetrahedral geometry to one O(10), one O(11), one O(12), and one O(9) atom. In the fourth P site, P(4) is bonded in a tetrahedral geometry to one O(13), one O(14), one O(15), and one O(16) atom. There are sixteen 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(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(3) and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(2), one K(4), and one P(1) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one K(1), one K(3), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(1), one K(4), and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one K(4) and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one K(1), one K(4), and one P(3) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one P(3) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one K(2), one K(3), one K(4), and one P(3) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one K(1), one K(3), and one P(4) atom. In the fourteenth O site, O(14) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one P(4) atom. In the fifteenth O site, O(15) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one P(4) atom. In the sixteenth O site, O(16) is bonded in a distorted single-bond geometry to one K(2) and one P(4) atom. is represented by the CIF file [CIF]
data_KPO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.890
_cell_length_b   7.358
_cell_length_c   7.730
_cell_angle_alpha   88.311
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   846.471
_cell_formula_units_Z   8
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  0.618  0.365  0.774  1.0
  K  K1  1  0.118  0.635  0.226  1.0
  K  K2  1  0.612  0.671  0.276  1.0
  K  K3  1  0.112  0.329  0.724  1.0
  K  K4  1  0.896  0.207  0.364  1.0
  K  K5  1  0.396  0.793  0.636  1.0
  K  K6  1  0.880  0.907  0.865  1.0
  K  K7  1  0.380  0.093  0.135  1.0
  P  P8  1  0.633  0.179  0.269  1.0
  P  P9  1  0.133  0.821  0.731  1.0
  P  P10  1  0.628  0.869  0.776  1.0
  P  P11  1  0.128  0.131  0.224  1.0
  P  P12  1  0.873  0.405  0.864  1.0
  P  P13  1  0.373  0.595  0.136  1.0
  P  P14  1  0.866  0.714  0.364  1.0
  P  P15  1  0.366  0.286  0.636  1.0
  O  O16  1  0.663  0.316  0.125  1.0
  O  O17  1  0.163  0.684  0.875  1.0
  O  O18  1  0.716  0.085  0.354  1.0
  O  O19  1  0.216  0.915  0.646  1.0
  O  O20  1  0.589  0.288  0.414  1.0
  O  O21  1  0.089  0.712  0.586  1.0
  O  O22  1  0.567  0.040  0.196  1.0
  O  O23  1  0.067  0.960  0.804  1.0
  O  O24  1  0.546  0.978  0.837  1.0
  O  O25  1  0.046  0.022  0.163  1.0
  O  O26  1  0.593  0.747  0.634  1.0
  O  O27  1  0.093  0.253  0.366  1.0
  O  O28  1  0.669  0.757  0.930  1.0
  O  O29  1  0.169  0.243  0.070  1.0
  O  O30  1  0.707  0.994  0.720  1.0
  O  O31  1  0.207  0.006  0.280  1.0
  O  O32  1  0.947  0.532  0.935  1.0
  O  O33  1  0.447  0.468  0.065  1.0
  O  O34  1  0.792  0.513  0.790  1.0
  O  O35  1  0.292  0.487  0.210  1.0
  O  O36  1  0.843  0.276  0.014  1.0
  O  O37  1  0.343  0.724  0.986  1.0
  O  O38  1  0.913  0.295  0.717  1.0
  O  O39  1  0.413  0.705  0.283  1.0
  O  O40  1  0.938  0.582  0.300  1.0
  O  O41  1  0.438  0.418  0.700  1.0
  O  O42  1  0.908  0.830  0.507  1.0
  O  O43  1  0.408  0.170  0.493  1.0
  O  O44  1  0.832  0.841  0.215  1.0
  O  O45  1  0.332  0.159  0.785  1.0
  O  O46  1  0.784  0.605  0.432  1.0
  O  O47  1  0.284  0.395  0.568  1.0
[/CIF]
.