The compound described by KU2(PO4)3 crystallizes in the monoclinic Cc space group. K(1) is bonded in a 9-coordinate geometry to one O(10), one O(3), one O(4), one O(5), one O(6), two equivalent O(11), and two equivalent O(12) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 9-coordinate geometry to one O(11), one O(5), one O(7), one O(8), one O(9), two equivalent O(1), and two equivalent O(3) atoms. In the second U site, U(2) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(6), one O(7), one O(8), two equivalent O(2), and two equivalent O(4) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(11), one O(12), one O(3), and one O(4) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(1), one O(10), one O(6), and one O(7) atom. In the third P site, P(3) is bonded in a tetrahedral geometry to one O(2), one O(5), one O(8), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one U(1), and one P(3) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one U(2), and one P(2) atom. In the third O site, O(7) is bonded in a distorted single-bond geometry to one U(1), one U(2), and one P(2) atom. In the fourth O site, O(8) is bonded in a distorted single-bond geometry to one U(1), one U(2), and one P(3) atom. In the fifth O site, O(9) is bonded in a bent 150 degrees geometry to one U(1) and one P(3) atom. In the sixth O site, O(10) is bonded in a 2-coordinate geometry to one K(1), one U(2), and one P(2) atom. In the seventh O site, O(11) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one P(1) atom. In the eighth O site, O(12) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(2), and one P(1) atom. In the ninth O site, O(1) is bonded in a distorted single-bond geometry to two equivalent U(1) and one P(2) atom. In the tenth O site, O(2) is bonded in a distorted single-bond geometry to two equivalent U(2) and one P(3) atom. In the eleventh O site, O(3) is bonded in a distorted single-bond geometry to one K(1), two equivalent U(1), and one P(1) atom. In the twelfth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), two equivalent U(2), and one P(1) atom. is represented by the CIF file [CIF]
data_KU2(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.457
_cell_length_b   9.457
_cell_length_c   8.083
_cell_angle_alpha   78.695
_cell_angle_beta   78.695
_cell_angle_gamma   42.328
_symmetry_Int_Tables_number   1
_cell_volume   475.891
_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  0.408  0.608  0.712  1.0
  K  K1  1  0.608  0.408  0.212  1.0
  U  U2  1  0.939  0.752  0.537  1.0
  U  U3  1  0.248  0.060  0.963  1.0
  U  U4  1  0.060  0.248  0.463  1.0
  U  U5  1  0.752  0.939  0.037  1.0
  P  P6  1  0.903  0.097  0.750  1.0
  P  P7  1  0.097  0.903  0.250  1.0
  P  P8  1  0.781  0.600  0.817  1.0
  P  P9  1  0.400  0.219  0.683  1.0
  P  P10  1  0.219  0.400  0.183  1.0
  P  P11  1  0.600  0.781  0.317  1.0
  O  O12  1  0.825  0.727  0.830  1.0
  O  O13  1  0.272  0.175  0.670  1.0
  O  O14  1  0.175  0.272  0.170  1.0
  O  O15  1  0.727  0.825  0.330  1.0
  O  O16  1  0.960  0.896  0.744  1.0
  O  O17  1  0.105  0.040  0.756  1.0
  O  O18  1  0.040  0.105  0.256  1.0
  O  O19  1  0.896  0.960  0.244  1.0
  O  O20  1  0.262  0.455  0.653  1.0
  O  O21  1  0.545  0.737  0.848  1.0
  O  O22  1  0.737  0.545  0.348  1.0
  O  O23  1  0.455  0.262  0.153  1.0
  O  O24  1  0.856  0.550  0.627  1.0
  O  O25  1  0.450  0.143  0.874  1.0
  O  O26  1  0.143  0.450  0.374  1.0
  O  O27  1  0.550  0.856  0.127  1.0
  O  O28  1  0.606  0.087  0.568  1.0
  O  O29  1  0.912  0.395  0.933  1.0
  O  O30  1  0.395  0.912  0.433  1.0
  O  O31  1  0.087  0.606  0.068  1.0
  O  O32  1  0.193  0.752  0.412  1.0
  O  O33  1  0.247  0.808  0.087  1.0
  O  O34  1  0.808  0.247  0.587  1.0
  O  O35  1  0.752  0.193  0.912  1.0
[/CIF]
.
The compound described by KU2(PO4)3 crystallizes in the monoclinic Cc space group. K(1) is bonded in a 9-coordinate geometry to one O(10), one O(3), one O(4), one O(5), one O(6), two equivalent O(11), and two equivalent O(12) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 9-coordinate geometry to one O(11), one O(5), one O(7), one O(8), one O(9), two equivalent O(1), and two equivalent O(3) atoms. In the second U site, U(2) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(6), one O(7), one O(8), two equivalent O(2), and two equivalent O(4) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(11), one O(12), one O(3), and one O(4) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(1), one O(10), one O(6), and one O(7) atom. In the third P site, P(3) is bonded in a tetrahedral geometry to one O(2), one O(5), one O(8), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one U(1), and one P(3) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one U(2), and one P(2) atom. In the third O site, O(7) is bonded in a distorted single-bond geometry to one U(1), one U(2), and one P(2) atom. In the fourth O site, O(8) is bonded in a distorted single-bond geometry to one U(1), one U(2), and one P(3) atom. In the fifth O site, O(9) is bonded in a bent 150 degrees geometry to one U(1) and one P(3) atom. In the sixth O site, O(10) is bonded in a 2-coordinate geometry to one K(1), one U(2), and one P(2) atom. In the seventh O site, O(11) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one P(1) atom. In the eighth O site, O(12) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(2), and one P(1) atom. In the ninth O site, O(1) is bonded in a distorted single-bond geometry to two equivalent U(1) and one P(2) atom. In the tenth O site, O(2) is bonded in a distorted single-bond geometry to two equivalent U(2) and one P(3) atom. In the eleventh O site, O(3) is bonded in a distorted single-bond geometry to one K(1), two equivalent U(1), and one P(1) atom. In the twelfth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), two equivalent U(2), and one P(1) atom. is represented by the CIF file [CIF]
data_KU2(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.457
_cell_length_b   9.457
_cell_length_c   8.083
_cell_angle_alpha   78.695
_cell_angle_beta   78.695
_cell_angle_gamma   42.328
_symmetry_Int_Tables_number   1
_cell_volume   475.891
_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  0.408  0.608  0.712  1.0
  K  K1  1  0.608  0.408  0.212  1.0
  U  U2  1  0.939  0.752  0.537  1.0
  U  U3  1  0.248  0.060  0.963  1.0
  U  U4  1  0.060  0.248  0.463  1.0
  U  U5  1  0.752  0.939  0.037  1.0
  P  P6  1  0.903  0.097  0.750  1.0
  P  P7  1  0.097  0.903  0.250  1.0
  P  P8  1  0.781  0.600  0.817  1.0
  P  P9  1  0.400  0.219  0.683  1.0
  P  P10  1  0.219  0.400  0.183  1.0
  P  P11  1  0.600  0.781  0.317  1.0
  O  O12  1  0.825  0.727  0.830  1.0
  O  O13  1  0.272  0.175  0.670  1.0
  O  O14  1  0.175  0.272  0.170  1.0
  O  O15  1  0.727  0.825  0.330  1.0
  O  O16  1  0.960  0.896  0.744  1.0
  O  O17  1  0.105  0.040  0.756  1.0
  O  O18  1  0.040  0.105  0.256  1.0
  O  O19  1  0.896  0.960  0.244  1.0
  O  O20  1  0.262  0.455  0.653  1.0
  O  O21  1  0.545  0.737  0.848  1.0
  O  O22  1  0.737  0.545  0.348  1.0
  O  O23  1  0.455  0.262  0.153  1.0
  O  O24  1  0.856  0.550  0.627  1.0
  O  O25  1  0.450  0.143  0.874  1.0
  O  O26  1  0.143  0.450  0.374  1.0
  O  O27  1  0.550  0.856  0.127  1.0
  O  O28  1  0.606  0.087  0.568  1.0
  O  O29  1  0.912  0.395  0.933  1.0
  O  O30  1  0.395  0.912  0.433  1.0
  O  O31  1  0.087  0.606  0.068  1.0
  O  O32  1  0.193  0.752  0.412  1.0
  O  O33  1  0.247  0.808  0.087  1.0
  O  O34  1  0.808  0.247  0.587  1.0
  O  O35  1  0.752  0.193  0.912  1.0
[/CIF]
.