The compound described by K3NaU(CO4)3 crystallizes in the monoclinic Cc space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(12), two equivalent O(5), two equivalent O(7), and two equivalent O(9) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(6), and one O(8) atom. In the third K site, K(3) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(6), and one O(8) atom. Na(1) is bonded to one O(1), one O(10), one O(11), one O(2), and one O(9) atom to form distorted NaO5 trigonal bipyramids that share corners with two equivalent U(1)O8 hexagonal bipyramids. U(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted UO8 hexagonal bipyramids that share corners with two equivalent Na(1)O5 trigonal bipyramids. There are three inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(3), one O(6), and one O(9) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(10), one O(4), and one O(7) atom. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(11), one O(5), and one O(8) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Na(1) and one U(1) atom. In the second O site, O(2) is bonded in a linear geometry to one Na(1) and one U(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(2), one K(3), one U(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(2), one K(3), one U(1), and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one C(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(2), one K(3), one U(1), and one C(1) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one C(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(2), one K(3), one U(1), and one C(3) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to two equivalent K(1), one Na(1), and one C(1) atom. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one K(2), one K(3), one Na(1), and one C(2) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one K(2), one K(3), one Na(1), and one C(3) atom. In the twelfth O site, O(12) is bonded in a trigonal non-coplanar geometry to one K(1), one K(2), and one K(3) atom. is represented by the CIF file [CIF]
data_K3NaU(CO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.371
_cell_length_b   9.407
_cell_length_c   9.429
_cell_angle_alpha   119.926
_cell_angle_beta   89.955
_cell_angle_gamma   90.090
_symmetry_Int_Tables_number   1
_cell_volume   643.531
_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  0.999  0.291  1.000  1.0
  K  K1  1  0.999  0.709  0.709  1.0
  K  K2  1  0.999  0.001  0.291  1.0
  K  K3  1  0.499  0.291  0.000  1.0
  K  K4  1  0.499  0.710  0.709  1.0
  K  K5  1  0.499  0.000  0.291  1.0
  Na  Na6  1  0.750  0.333  0.666  1.0
  Na  Na7  1  0.250  0.667  0.334  1.0
  U  U8  1  0.750  0.667  0.333  1.0
  U  U9  1  0.250  0.334  0.667  1.0
  C  C10  1  0.750  0.986  0.627  1.0
  C  C11  1  0.749  0.641  0.014  1.0
  C  C12  1  0.750  0.373  0.359  1.0
  C  C13  1  0.250  0.359  0.373  1.0
  C  C14  1  0.249  0.628  0.986  1.0
  C  C15  1  0.250  0.013  0.641  1.0
  O  O16  1  0.970  0.667  0.333  1.0
  O  O17  1  0.530  0.667  0.333  1.0
  O  O18  1  0.470  0.334  0.667  1.0
  O  O19  1  0.030  0.333  0.667  1.0
  O  O20  1  0.750  0.847  0.629  1.0
  O  O21  1  0.749  0.782  0.153  1.0
  O  O22  1  0.750  0.370  0.219  1.0
  O  O23  1  0.250  0.218  0.371  1.0
  O  O24  1  0.249  0.630  0.847  1.0
  O  O25  1  0.250  0.152  0.781  1.0
  O  O26  1  0.750  0.968  0.479  1.0
  O  O27  1  0.750  0.512  0.033  1.0
  O  O28  1  0.750  0.521  0.488  1.0
  O  O29  1  0.250  0.489  0.521  1.0
  O  O30  1  0.250  0.479  0.967  1.0
  O  O31  1  0.250  0.033  0.512  1.0
  O  O32  1  0.749  0.126  0.755  1.0
  O  O33  1  0.749  0.630  0.874  1.0
  O  O34  1  0.749  0.245  0.372  1.0
  O  O35  1  0.249  0.370  0.245  1.0
  O  O36  1  0.249  0.756  0.126  1.0
  O  O37  1  0.249  0.873  0.628  1.0
  O  O38  1  0.138  0.001  0.004  1.0
  O  O39  1  0.638  0.997  0.996  1.0
[/CIF]
.
The compound described by K3NaU(CO4)3 crystallizes in the monoclinic Cc space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(12), two equivalent O(5), two equivalent O(7), and two equivalent O(9) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(6), and one O(8) atom. In the third K site, K(3) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(6), and one O(8) atom. Na(1) is bonded to one O(1), one O(10), one O(11), one O(2), and one O(9) atom to form distorted NaO5 trigonal bipyramids that share corners with two equivalent U(1)O8 hexagonal bipyramids. U(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted UO8 hexagonal bipyramids that share corners with two equivalent Na(1)O5 trigonal bipyramids. There are three inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(3), one O(6), and one O(9) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(10), one O(4), and one O(7) atom. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(11), one O(5), and one O(8) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Na(1) and one U(1) atom. In the second O site, O(2) is bonded in a linear geometry to one Na(1) and one U(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(2), one K(3), one U(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(2), one K(3), one U(1), and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one C(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(2), one K(3), one U(1), and one C(1) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one C(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(2), one K(3), one U(1), and one C(3) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to two equivalent K(1), one Na(1), and one C(1) atom. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one K(2), one K(3), one Na(1), and one C(2) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one K(2), one K(3), one Na(1), and one C(3) atom. In the twelfth O site, O(12) is bonded in a trigonal non-coplanar geometry to one K(1), one K(2), and one K(3) atom. is represented by the CIF file [CIF]
data_K3NaU(CO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.371
_cell_length_b   9.407
_cell_length_c   9.429
_cell_angle_alpha   119.926
_cell_angle_beta   89.955
_cell_angle_gamma   90.090
_symmetry_Int_Tables_number   1
_cell_volume   643.531
_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  0.999  0.291  1.000  1.0
  K  K1  1  0.999  0.709  0.709  1.0
  K  K2  1  0.999  0.001  0.291  1.0
  K  K3  1  0.499  0.291  0.000  1.0
  K  K4  1  0.499  0.710  0.709  1.0
  K  K5  1  0.499  0.000  0.291  1.0
  Na  Na6  1  0.750  0.333  0.666  1.0
  Na  Na7  1  0.250  0.667  0.334  1.0
  U  U8  1  0.750  0.667  0.333  1.0
  U  U9  1  0.250  0.334  0.667  1.0
  C  C10  1  0.750  0.986  0.627  1.0
  C  C11  1  0.749  0.641  0.014  1.0
  C  C12  1  0.750  0.373  0.359  1.0
  C  C13  1  0.250  0.359  0.373  1.0
  C  C14  1  0.249  0.628  0.986  1.0
  C  C15  1  0.250  0.013  0.641  1.0
  O  O16  1  0.970  0.667  0.333  1.0
  O  O17  1  0.530  0.667  0.333  1.0
  O  O18  1  0.470  0.334  0.667  1.0
  O  O19  1  0.030  0.333  0.667  1.0
  O  O20  1  0.750  0.847  0.629  1.0
  O  O21  1  0.749  0.782  0.153  1.0
  O  O22  1  0.750  0.370  0.219  1.0
  O  O23  1  0.250  0.218  0.371  1.0
  O  O24  1  0.249  0.630  0.847  1.0
  O  O25  1  0.250  0.152  0.781  1.0
  O  O26  1  0.750  0.968  0.479  1.0
  O  O27  1  0.750  0.512  0.033  1.0
  O  O28  1  0.750  0.521  0.488  1.0
  O  O29  1  0.250  0.489  0.521  1.0
  O  O30  1  0.250  0.479  0.967  1.0
  O  O31  1  0.250  0.033  0.512  1.0
  O  O32  1  0.749  0.126  0.755  1.0
  O  O33  1  0.749  0.630  0.874  1.0
  O  O34  1  0.749  0.245  0.372  1.0
  O  O35  1  0.249  0.370  0.245  1.0
  O  O36  1  0.249  0.756  0.126  1.0
  O  O37  1  0.249  0.873  0.628  1.0
  O  O38  1  0.138  0.001  0.004  1.0
  O  O39  1  0.638  0.997  0.996  1.0
[/CIF]
.