The material described by K2UP2(H2O5)2 crystallizes in the monoclinic P2_1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(2), two equivalent O(7), and two equivalent O(9) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to one O(1), one O(4), one O(5), one O(9), and two equivalent O(10) atoms. U(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent P(2)HO3 tetrahedra and corners with three equivalent P(1)HO3 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one H(1), one O(3), one O(4), and one O(5) atom to form distorted PHO3 tetrahedra that share corners with three equivalent U(1)O7 pentagonal bipyramids. In the second P site, P(2) is bonded to one H(2), one O(6), one O(7), and one O(8) atom to form distorted PHO3 tetrahedra that share corners with two equivalent U(1)O7 pentagonal bipyramids. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one P(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one P(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(9) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(10) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(2) and one U(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one U(1) atom. In the third O site, O(3) is bonded in a 1-coordinate geometry to one K(1), one U(1), 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 U(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1), one K(2), one U(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one U(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent K(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one U(1) and one P(2) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one K(2), two equivalent K(1), and one H(3) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to two equivalent K(2) and one H(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2UP2(H2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.957
_cell_length_b   7.827
_cell_length_c   10.740
_cell_angle_alpha   68.853
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   545.456
_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  0.284  0.982  0.409  1.0
  K  K1  1  0.784  0.018  0.591  1.0
  K  K2  1  0.519  0.659  0.918  1.0
  K  K3  1  0.019  0.341  0.082  1.0
  U  U4  1  0.243  0.171  0.768  1.0
  U  U5  1  0.743  0.829  0.232  1.0
  P  P6  1  0.735  0.146  0.881  1.0
  P  P7  1  0.235  0.854  0.119  1.0
  P  P8  1  0.465  0.421  0.447  1.0
  P  P9  1  0.965  0.579  0.553  1.0
  H  H10  1  0.716  0.339  0.824  1.0
  H  H11  1  0.216  0.661  0.176  1.0
  H  H12  1  0.272  0.438  0.403  1.0
  H  H13  1  0.772  0.562  0.597  1.0
  H  H14  1  0.962  0.386  0.371  1.0
  H  H15  1  0.462  0.614  0.629  1.0
  H  H16  1  0.011  0.702  0.790  1.0
  H  H17  1  0.511  0.298  0.210  1.0
  O  O18  1  0.258  0.317  0.868  1.0
  O  O19  1  0.758  0.683  0.132  1.0
  O  O20  1  0.226  0.028  0.667  1.0
  O  O21  1  0.726  0.972  0.333  1.0
  O  O22  1  0.923  0.095  0.828  1.0
  O  O23  1  0.423  0.905  0.172  1.0
  O  O24  1  0.741  0.100  0.033  1.0
  O  O25  1  0.241  0.900  0.967  1.0
  O  O26  1  0.565  0.063  0.831  1.0
  O  O27  1  0.065  0.937  0.169  1.0
  O  O28  1  0.456  0.364  0.601  1.0
  O  O29  1  0.956  0.636  0.399  1.0
  O  O30  1  0.564  0.278  0.402  1.0
  O  O31  1  0.064  0.722  0.598  1.0
  O  O32  1  0.549  0.616  0.387  1.0
  O  O33  1  0.049  0.384  0.613  1.0
  O  O34  1  0.482  0.729  0.647  1.0
  O  O35  1  0.982  0.271  0.353  1.0
  O  O36  1  0.413  0.351  0.141  1.0
  O  O37  1  0.913  0.649  0.859  1.0
[/CIF]
.
The material described by K2UP2(H2O5)2 crystallizes in the monoclinic P2_1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(2), two equivalent O(7), and two equivalent O(9) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to one O(1), one O(4), one O(5), one O(9), and two equivalent O(10) atoms. U(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent P(2)HO3 tetrahedra and corners with three equivalent P(1)HO3 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one H(1), one O(3), one O(4), and one O(5) atom to form distorted PHO3 tetrahedra that share corners with three equivalent U(1)O7 pentagonal bipyramids. In the second P site, P(2) is bonded to one H(2), one O(6), one O(7), and one O(8) atom to form distorted PHO3 tetrahedra that share corners with two equivalent U(1)O7 pentagonal bipyramids. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one P(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one P(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(9) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(10) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(2) and one U(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one U(1) atom. In the third O site, O(3) is bonded in a 1-coordinate geometry to one K(1), one U(1), 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 U(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1), one K(2), one U(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one U(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent K(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one U(1) and one P(2) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one K(2), two equivalent K(1), and one H(3) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to two equivalent K(2) and one H(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2UP2(H2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.957
_cell_length_b   7.827
_cell_length_c   10.740
_cell_angle_alpha   68.853
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   545.456
_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  0.284  0.982  0.409  1.0
  K  K1  1  0.784  0.018  0.591  1.0
  K  K2  1  0.519  0.659  0.918  1.0
  K  K3  1  0.019  0.341  0.082  1.0
  U  U4  1  0.243  0.171  0.768  1.0
  U  U5  1  0.743  0.829  0.232  1.0
  P  P6  1  0.735  0.146  0.881  1.0
  P  P7  1  0.235  0.854  0.119  1.0
  P  P8  1  0.465  0.421  0.447  1.0
  P  P9  1  0.965  0.579  0.553  1.0
  H  H10  1  0.716  0.339  0.824  1.0
  H  H11  1  0.216  0.661  0.176  1.0
  H  H12  1  0.272  0.438  0.403  1.0
  H  H13  1  0.772  0.562  0.597  1.0
  H  H14  1  0.962  0.386  0.371  1.0
  H  H15  1  0.462  0.614  0.629  1.0
  H  H16  1  0.011  0.702  0.790  1.0
  H  H17  1  0.511  0.298  0.210  1.0
  O  O18  1  0.258  0.317  0.868  1.0
  O  O19  1  0.758  0.683  0.132  1.0
  O  O20  1  0.226  0.028  0.667  1.0
  O  O21  1  0.726  0.972  0.333  1.0
  O  O22  1  0.923  0.095  0.828  1.0
  O  O23  1  0.423  0.905  0.172  1.0
  O  O24  1  0.741  0.100  0.033  1.0
  O  O25  1  0.241  0.900  0.967  1.0
  O  O26  1  0.565  0.063  0.831  1.0
  O  O27  1  0.065  0.937  0.169  1.0
  O  O28  1  0.456  0.364  0.601  1.0
  O  O29  1  0.956  0.636  0.399  1.0
  O  O30  1  0.564  0.278  0.402  1.0
  O  O31  1  0.064  0.722  0.598  1.0
  O  O32  1  0.549  0.616  0.387  1.0
  O  O33  1  0.049  0.384  0.613  1.0
  O  O34  1  0.482  0.729  0.647  1.0
  O  O35  1  0.982  0.271  0.353  1.0
  O  O36  1  0.413  0.351  0.141  1.0
  O  O37  1  0.913  0.649  0.859  1.0
[/CIF]
.