The crystal structure described by K3UC5O17 crystallizes in the triclinic P-1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(16), one O(2), one O(4), one O(7), and two equivalent O(17) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(5), one O(6), two equivalent O(10), and two equivalent O(9) atoms. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(15), one O(2), one O(8), and two equivalent O(14) atoms. U(1) is bonded in a distorted pentagonal bipyramidal geometry to one O(1), one O(11), one O(2), one O(3), one O(4), one O(7), and one O(8) atom. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(5) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(4) and one O(6) atom. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one O(7) and one O(9) atom. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(8) atom. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(11) and one O(12) atom. There are seventeen 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 1-coordinate geometry to one K(1), one K(3), and one U(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one U(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one K(1), one U(1), and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(2) and one C(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(2) and one C(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one K(1), one U(1), and one C(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(3), one U(1), and one C(4) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to two equivalent K(2) and one C(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one K(3), two equivalent K(2), and one C(4) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one K(3), one U(1), and one C(5) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one K(2), one K(3), and one C(5) atom. In the thirteenth O site, O(13) is bonded in a single-bond geometry to one O(14) atom. In the fourteenth O site, O(14) is bonded in a distorted T-shaped geometry to two equivalent K(3) and one O(13) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one K(3) and one O(16) atom. In the sixteenth O site, O(16) is bonded in a water-like geometry to one K(1) and one O(15) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to two equivalent K(1) and one O(17) atom. is represented by the CIF card [CIF]
data_K3UC5O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.184
_cell_length_b   10.333
_cell_length_c   10.722
_cell_angle_alpha   96.309
_cell_angle_beta   105.921
_cell_angle_gamma   116.388
_symmetry_Int_Tables_number   1
_cell_volume   936.165
_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  0.662  0.277  0.450  1.0
  K  K1  1  0.338  0.723  0.550  1.0
  K  K2  1  0.068  0.043  0.848  1.0
  K  K3  1  0.932  0.957  0.152  1.0
  K  K4  1  0.187  0.455  0.097  1.0
  K  K5  1  0.813  0.545  0.903  1.0
  U  U6  1  0.469  0.144  0.758  1.0
  U  U7  1  0.531  0.856  0.242  1.0
  C  C8  1  0.180  0.107  0.501  1.0
  C  C9  1  0.820  0.893  0.499  1.0
  C  C10  1  0.192  0.964  0.456  1.0
  C  C11  1  0.808  0.036  0.544  1.0
  C  C12  1  0.691  0.986  0.839  1.0
  C  C13  1  0.309  0.014  0.161  1.0
  C  C14  1  0.791  0.146  0.939  1.0
  C  C15  1  0.209  0.854  0.061  1.0
  C  C16  1  0.448  0.416  0.958  1.0
  C  C17  1  0.552  0.584  0.042  1.0
  O  O18  1  0.345  0.036  0.844  1.0
  O  O19  1  0.655  0.964  0.156  1.0
  O  O20  1  0.597  0.262  0.675  1.0
  O  O21  1  0.403  0.738  0.325  1.0
  O  O22  1  0.271  0.181  0.625  1.0
  O  O23  1  0.729  0.819  0.375  1.0
  O  O24  1  0.301  0.957  0.549  1.0
  O  O25  1  0.699  0.043  0.451  1.0
  O  O26  1  0.094  0.138  0.421  1.0
  O  O27  1  0.906  0.862  0.579  1.0
  O  O28  1  0.107  0.873  0.345  1.0
  O  O29  1  0.893  0.127  0.655  1.0
  O  O30  1  0.560  0.964  0.753  1.0
  O  O31  1  0.440  0.036  0.247  1.0
  O  O32  1  0.722  0.225  0.931  1.0
  O  O33  1  0.278  0.775  0.069  1.0
  O  O34  1  0.740  0.896  0.844  1.0
  O  O35  1  0.260  0.104  0.156  1.0
  O  O36  1  0.928  0.188  0.015  1.0
  O  O37  1  0.072  0.812  0.985  1.0
  O  O38  1  0.519  0.367  0.900  1.0
  O  O39  1  0.481  0.633  0.100  1.0
  O  O40  1  0.310  0.343  0.951  1.0
  O  O41  1  0.690  0.657  0.049  1.0
  O  O42  1  0.827  0.451  0.224  1.0
  O  O43  1  0.173  0.549  0.776  1.0
  O  O44  1  0.049  0.476  0.794  1.0
  O  O45  1  0.951  0.524  0.206  1.0
  O  O46  1  0.417  0.431  0.338  1.0
  O  O47  1  0.583  0.569  0.662  1.0
  O  O48  1  0.445  0.523  0.655  1.0
  O  O49  1  0.555  0.477  0.345  1.0
  O  O50  1  0.016  0.451  0.482  1.0
  O  O51  1  0.984  0.549  0.518  1.0
[/CIF]
.
The crystal structure described by K3UC5O17 crystallizes in the triclinic P-1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(16), one O(2), one O(4), one O(7), and two equivalent O(17) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(5), one O(6), two equivalent O(10), and two equivalent O(9) atoms. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(15), one O(2), one O(8), and two equivalent O(14) atoms. U(1) is bonded in a distorted pentagonal bipyramidal geometry to one O(1), one O(11), one O(2), one O(3), one O(4), one O(7), and one O(8) atom. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(5) atom. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(4) and one O(6) atom. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one O(7) and one O(9) atom. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(8) atom. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(11) and one O(12) atom. There are seventeen 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 1-coordinate geometry to one K(1), one K(3), and one U(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one U(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one K(1), one U(1), and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(2) and one C(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(2) and one C(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one K(1), one U(1), and one C(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(3), one U(1), and one C(4) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to two equivalent K(2) and one C(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one K(3), two equivalent K(2), and one C(4) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one K(3), one U(1), and one C(5) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one K(2), one K(3), and one C(5) atom. In the thirteenth O site, O(13) is bonded in a single-bond geometry to one O(14) atom. In the fourteenth O site, O(14) is bonded in a distorted T-shaped geometry to two equivalent K(3) and one O(13) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one K(3) and one O(16) atom. In the sixteenth O site, O(16) is bonded in a water-like geometry to one K(1) and one O(15) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to two equivalent K(1) and one O(17) atom. is represented by the CIF card [CIF]
data_K3UC5O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.184
_cell_length_b   10.333
_cell_length_c   10.722
_cell_angle_alpha   96.309
_cell_angle_beta   105.921
_cell_angle_gamma   116.388
_symmetry_Int_Tables_number   1
_cell_volume   936.165
_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  0.662  0.277  0.450  1.0
  K  K1  1  0.338  0.723  0.550  1.0
  K  K2  1  0.068  0.043  0.848  1.0
  K  K3  1  0.932  0.957  0.152  1.0
  K  K4  1  0.187  0.455  0.097  1.0
  K  K5  1  0.813  0.545  0.903  1.0
  U  U6  1  0.469  0.144  0.758  1.0
  U  U7  1  0.531  0.856  0.242  1.0
  C  C8  1  0.180  0.107  0.501  1.0
  C  C9  1  0.820  0.893  0.499  1.0
  C  C10  1  0.192  0.964  0.456  1.0
  C  C11  1  0.808  0.036  0.544  1.0
  C  C12  1  0.691  0.986  0.839  1.0
  C  C13  1  0.309  0.014  0.161  1.0
  C  C14  1  0.791  0.146  0.939  1.0
  C  C15  1  0.209  0.854  0.061  1.0
  C  C16  1  0.448  0.416  0.958  1.0
  C  C17  1  0.552  0.584  0.042  1.0
  O  O18  1  0.345  0.036  0.844  1.0
  O  O19  1  0.655  0.964  0.156  1.0
  O  O20  1  0.597  0.262  0.675  1.0
  O  O21  1  0.403  0.738  0.325  1.0
  O  O22  1  0.271  0.181  0.625  1.0
  O  O23  1  0.729  0.819  0.375  1.0
  O  O24  1  0.301  0.957  0.549  1.0
  O  O25  1  0.699  0.043  0.451  1.0
  O  O26  1  0.094  0.138  0.421  1.0
  O  O27  1  0.906  0.862  0.579  1.0
  O  O28  1  0.107  0.873  0.345  1.0
  O  O29  1  0.893  0.127  0.655  1.0
  O  O30  1  0.560  0.964  0.753  1.0
  O  O31  1  0.440  0.036  0.247  1.0
  O  O32  1  0.722  0.225  0.931  1.0
  O  O33  1  0.278  0.775  0.069  1.0
  O  O34  1  0.740  0.896  0.844  1.0
  O  O35  1  0.260  0.104  0.156  1.0
  O  O36  1  0.928  0.188  0.015  1.0
  O  O37  1  0.072  0.812  0.985  1.0
  O  O38  1  0.519  0.367  0.900  1.0
  O  O39  1  0.481  0.633  0.100  1.0
  O  O40  1  0.310  0.343  0.951  1.0
  O  O41  1  0.690  0.657  0.049  1.0
  O  O42  1  0.827  0.451  0.224  1.0
  O  O43  1  0.173  0.549  0.776  1.0
  O  O44  1  0.049  0.476  0.794  1.0
  O  O45  1  0.951  0.524  0.206  1.0
  O  O46  1  0.417  0.431  0.338  1.0
  O  O47  1  0.583  0.569  0.662  1.0
  O  O48  1  0.445  0.523  0.655  1.0
  O  O49  1  0.555  0.477  0.345  1.0
  O  O50  1  0.016  0.451  0.482  1.0
  O  O51  1  0.984  0.549  0.518  1.0
[/CIF]
.