The structure described by KU2(PO4)3 crystallizes in the trigonal R-3c space group. K(1) is bonded in a hexagonal planar geometry to six equivalent O(2) atoms. U(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form UO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with four equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-31°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one U(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one U(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KU2(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.930
_cell_length_b   9.930
_cell_length_c   9.930
_cell_angle_alpha   55.430
_cell_angle_beta   55.430
_cell_angle_gamma   55.430
_symmetry_Int_Tables_number   1
_cell_volume   618.856
_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  0.500  0.500  0.500  1.0
  K  K1  1  0.000  0.000  0.000  1.0
  U  U2  1  0.850  0.850  0.850  1.0
  U  U3  1  0.150  0.150  0.150  1.0
  U  U4  1  0.650  0.650  0.650  1.0
  U  U5  1  0.350  0.350  0.350  1.0
  P  P6  1  0.544  0.956  0.250  1.0
  P  P7  1  0.250  0.544  0.956  1.0
  P  P8  1  0.750  0.456  0.044  1.0
  P  P9  1  0.956  0.250  0.544  1.0
  P  P10  1  0.044  0.750  0.456  1.0
  P  P11  1  0.456  0.044  0.750  1.0
  O  O12  1  0.732  0.486  0.883  1.0
  O  O13  1  0.915  0.291  0.072  1.0
  O  O14  1  0.709  0.928  0.085  1.0
  O  O15  1  0.209  0.585  0.428  1.0
  O  O16  1  0.014  0.768  0.617  1.0
  O  O17  1  0.383  0.986  0.232  1.0
  O  O18  1  0.791  0.415  0.572  1.0
  O  O19  1  0.291  0.072  0.915  1.0
  O  O20  1  0.428  0.209  0.585  1.0
  O  O21  1  0.768  0.617  0.014  1.0
  O  O22  1  0.617  0.014  0.768  1.0
  O  O23  1  0.117  0.268  0.514  1.0
  O  O24  1  0.486  0.883  0.732  1.0
  O  O25  1  0.415  0.572  0.791  1.0
  O  O26  1  0.085  0.709  0.928  1.0
  O  O27  1  0.572  0.791  0.415  1.0
  O  O28  1  0.268  0.514  0.117  1.0
  O  O29  1  0.514  0.117  0.268  1.0
  O  O30  1  0.986  0.232  0.383  1.0
  O  O31  1  0.585  0.428  0.209  1.0
  O  O32  1  0.232  0.383  0.986  1.0
  O  O33  1  0.928  0.085  0.709  1.0
  O  O34  1  0.883  0.732  0.486  1.0
  O  O35  1  0.072  0.915  0.291  1.0
[/CIF]
.
The structure described by KU2(PO4)3 crystallizes in the trigonal R-3c space group. K(1) is bonded in a hexagonal planar geometry to six equivalent O(2) atoms. U(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form UO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with four equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-31°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one U(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one U(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KU2(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.930
_cell_length_b   9.930
_cell_length_c   9.930
_cell_angle_alpha   55.430
_cell_angle_beta   55.430
_cell_angle_gamma   55.430
_symmetry_Int_Tables_number   1
_cell_volume   618.856
_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  0.500  0.500  0.500  1.0
  K  K1  1  0.000  0.000  0.000  1.0
  U  U2  1  0.850  0.850  0.850  1.0
  U  U3  1  0.150  0.150  0.150  1.0
  U  U4  1  0.650  0.650  0.650  1.0
  U  U5  1  0.350  0.350  0.350  1.0
  P  P6  1  0.544  0.956  0.250  1.0
  P  P7  1  0.250  0.544  0.956  1.0
  P  P8  1  0.750  0.456  0.044  1.0
  P  P9  1  0.956  0.250  0.544  1.0
  P  P10  1  0.044  0.750  0.456  1.0
  P  P11  1  0.456  0.044  0.750  1.0
  O  O12  1  0.732  0.486  0.883  1.0
  O  O13  1  0.915  0.291  0.072  1.0
  O  O14  1  0.709  0.928  0.085  1.0
  O  O15  1  0.209  0.585  0.428  1.0
  O  O16  1  0.014  0.768  0.617  1.0
  O  O17  1  0.383  0.986  0.232  1.0
  O  O18  1  0.791  0.415  0.572  1.0
  O  O19  1  0.291  0.072  0.915  1.0
  O  O20  1  0.428  0.209  0.585  1.0
  O  O21  1  0.768  0.617  0.014  1.0
  O  O22  1  0.617  0.014  0.768  1.0
  O  O23  1  0.117  0.268  0.514  1.0
  O  O24  1  0.486  0.883  0.732  1.0
  O  O25  1  0.415  0.572  0.791  1.0
  O  O26  1  0.085  0.709  0.928  1.0
  O  O27  1  0.572  0.791  0.415  1.0
  O  O28  1  0.268  0.514  0.117  1.0
  O  O29  1  0.514  0.117  0.268  1.0
  O  O30  1  0.986  0.232  0.383  1.0
  O  O31  1  0.585  0.428  0.209  1.0
  O  O32  1  0.232  0.383  0.986  1.0
  O  O33  1  0.928  0.085  0.709  1.0
  O  O34  1  0.883  0.732  0.486  1.0
  O  O35  1  0.072  0.915  0.291  1.0
[/CIF]
.