The crystal structure described by Na2U(WO5)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(8), and two equivalent O(7) atoms. In the second Na site, Na(2) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(6), one O(7), one O(9), and two equivalent O(4) atoms. U(1) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(7), two equivalent O(8), and two equivalent O(9) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(10), one O(5), one O(8), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 1-35°. In the second W site, W(2) is bonded to one O(1), one O(2), one O(5), one O(9), and two equivalent O(6) atoms to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 1-35°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one U(1), one W(1), and one W(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one W(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Na(1), two equivalent Na(2), and one U(1) atom. In the fifth O site, O(5) is bonded in a linear geometry to one W(1) and one W(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Na(2) and two equivalent W(2) atoms. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Na(2), two equivalent Na(1), and one U(1) atom. In the eighth O site, O(8) is bonded to one Na(1), two equivalent U(1), and one W(1) atom to form distorted edge-sharing ONaU2W trigonal pyramids. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Na(2), two equivalent U(1), and one W(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one W(1) atom. is represented by the CIF card [CIF]
data_Na2U(WO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.825
_cell_length_b   7.666
_cell_length_c   8.634
_cell_angle_alpha   89.921
_cell_angle_beta   93.007
_cell_angle_gamma   106.553
_symmetry_Int_Tables_number   1
_cell_volume   432.370
_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
  Na  Na0  1  0.401  0.095  0.799  1.0
  Na  Na1  1  0.587  0.394  0.208  1.0
  Na  Na2  1  0.599  0.905  0.201  1.0
  Na  Na3  1  0.413  0.606  0.792  1.0
  U  U4  1  0.006  0.751  0.022  1.0
  U  U5  1  0.994  0.249  0.978  1.0
  W  W6  1  0.842  0.960  0.638  1.0
  W  W7  1  0.840  0.458  0.637  1.0
  W  W8  1  0.158  0.040  0.362  1.0
  W  W9  1  0.160  0.542  0.363  1.0
  O  O10  1  0.908  0.226  0.687  1.0
  O  O11  1  0.421  0.625  0.317  1.0
  O  O12  1  0.832  0.985  0.424  1.0
  O  O13  1  0.724  0.679  0.042  1.0
  O  O14  1  0.092  0.774  0.313  1.0
  O  O15  1  0.840  0.709  0.636  1.0
  O  O16  1  0.160  0.291  0.364  1.0
  O  O17  1  0.169  0.569  0.578  1.0
  O  O18  1  0.286  0.821  0.995  1.0
  O  O19  1  0.981  0.973  0.852  1.0
  O  O20  1  0.276  0.321  0.958  1.0
  O  O21  1  0.976  0.516  0.852  1.0
  O  O22  1  0.714  0.179  0.005  1.0
  O  O23  1  0.579  0.375  0.683  1.0
  O  O24  1  0.831  0.431  0.422  1.0
  O  O25  1  0.582  0.910  0.689  1.0
  O  O26  1  0.019  0.027  0.148  1.0
  O  O27  1  0.168  0.015  0.576  1.0
  O  O28  1  0.024  0.484  0.148  1.0
  O  O29  1  0.418  0.090  0.311  1.0
[/CIF]
.
The crystal structure described by Na2U(WO5)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(8), and two equivalent O(7) atoms. In the second Na site, Na(2) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(6), one O(7), one O(9), and two equivalent O(4) atoms. U(1) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(7), two equivalent O(8), and two equivalent O(9) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(10), one O(5), one O(8), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 1-35°. In the second W site, W(2) is bonded to one O(1), one O(2), one O(5), one O(9), and two equivalent O(6) atoms to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 1-35°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one U(1), one W(1), and one W(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one W(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Na(1), two equivalent Na(2), and one U(1) atom. In the fifth O site, O(5) is bonded in a linear geometry to one W(1) and one W(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Na(2) and two equivalent W(2) atoms. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Na(2), two equivalent Na(1), and one U(1) atom. In the eighth O site, O(8) is bonded to one Na(1), two equivalent U(1), and one W(1) atom to form distorted edge-sharing ONaU2W trigonal pyramids. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Na(2), two equivalent U(1), and one W(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one W(1) atom. is represented by the CIF card [CIF]
data_Na2U(WO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.825
_cell_length_b   7.666
_cell_length_c   8.634
_cell_angle_alpha   89.921
_cell_angle_beta   93.007
_cell_angle_gamma   106.553
_symmetry_Int_Tables_number   1
_cell_volume   432.370
_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
  Na  Na0  1  0.401  0.095  0.799  1.0
  Na  Na1  1  0.587  0.394  0.208  1.0
  Na  Na2  1  0.599  0.905  0.201  1.0
  Na  Na3  1  0.413  0.606  0.792  1.0
  U  U4  1  0.006  0.751  0.022  1.0
  U  U5  1  0.994  0.249  0.978  1.0
  W  W6  1  0.842  0.960  0.638  1.0
  W  W7  1  0.840  0.458  0.637  1.0
  W  W8  1  0.158  0.040  0.362  1.0
  W  W9  1  0.160  0.542  0.363  1.0
  O  O10  1  0.908  0.226  0.687  1.0
  O  O11  1  0.421  0.625  0.317  1.0
  O  O12  1  0.832  0.985  0.424  1.0
  O  O13  1  0.724  0.679  0.042  1.0
  O  O14  1  0.092  0.774  0.313  1.0
  O  O15  1  0.840  0.709  0.636  1.0
  O  O16  1  0.160  0.291  0.364  1.0
  O  O17  1  0.169  0.569  0.578  1.0
  O  O18  1  0.286  0.821  0.995  1.0
  O  O19  1  0.981  0.973  0.852  1.0
  O  O20  1  0.276  0.321  0.958  1.0
  O  O21  1  0.976  0.516  0.852  1.0
  O  O22  1  0.714  0.179  0.005  1.0
  O  O23  1  0.579  0.375  0.683  1.0
  O  O24  1  0.831  0.431  0.422  1.0
  O  O25  1  0.582  0.910  0.689  1.0
  O  O26  1  0.019  0.027  0.148  1.0
  O  O27  1  0.168  0.015  0.576  1.0
  O  O28  1  0.024  0.484  0.148  1.0
  O  O29  1  0.418  0.090  0.311  1.0
[/CIF]
.