The compound described by U3P2(PbO8)2 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), one O(8), and one O(9) atom to form distorted UO7 pentagonal bipyramids that share corners with three equivalent P(1)O4 tetrahedra and  an edgeedge with one U(1)O7 pentagonal bipyramid. In the second U site, U(2) is bonded in a 8-coordinate geometry to one O(10), one O(3), one O(5), one O(8), two equivalent O(6), and two equivalent O(9) atoms. Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(6), and two equivalent O(2) atoms. P(1) is bonded to one O(2), one O(4), one O(6), and one O(9) atom to form PO4 tetrahedra that share corners with three equivalent U(1)O7 pentagonal bipyramids. There are ten inequivalent O sites. In the first O site, O(7) is bonded in a single-bond geometry to one U(1) atom. In the second O site, O(8) is bonded in a trigonal planar geometry to one U(2) and two equivalent U(1) atoms. In the third O site, O(9) is bonded in a distorted single-bond geometry to one U(1), one U(2), and one P(1) atom. In the fourth O site, O(10) is bonded in a single-bond geometry to one U(2) atom. In the fifth O site, O(1) is bonded in a distorted bent 120 degrees geometry to one U(1) and one Pb(1) atom. In the sixth O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Pb(1) and one P(1) atom. In the seventh O site, O(3) is bonded in a trigonal planar geometry to one U(2) and two equivalent U(1) atoms. In the eighth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one U(1) and one P(1) atom. In the ninth O site, O(5) is bonded in a single-bond geometry to one U(2) atom. In the tenth O site, O(6) is bonded in a distorted single-bond geometry to one U(1), one U(2), one Pb(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_U3P2(PbO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.038
_cell_length_b   6.864
_cell_length_c   17.106
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   107.661
_symmetry_Int_Tables_number   1
_cell_volume   787.463
_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
  U  U0  1  0.198  0.896  0.858  1.0
  U  U1  1  0.802  0.104  0.142  1.0
  U  U2  1  0.802  0.104  0.358  1.0
  U  U3  1  0.198  0.896  0.642  1.0
  U  U4  1  0.700  0.896  0.750  1.0
  U  U5  1  0.300  0.104  0.250  1.0
  P  P6  1  0.694  0.901  0.943  1.0
  P  P7  1  0.306  0.099  0.057  1.0
  P  P8  1  0.306  0.099  0.443  1.0
  P  P9  1  0.694  0.901  0.557  1.0
  Pb  Pb10  1  0.602  0.385  0.900  1.0
  Pb  Pb11  1  0.398  0.615  0.100  1.0
  Pb  Pb12  1  0.398  0.615  0.400  1.0
  Pb  Pb13  1  0.602  0.385  0.600  1.0
  O  O14  1  0.719  0.817  0.354  1.0
  O  O15  1  0.281  0.183  0.646  1.0
  O  O16  1  0.281  0.183  0.854  1.0
  O  O17  1  0.719  0.817  0.146  1.0
  O  O18  1  0.573  0.693  0.522  1.0
  O  O19  1  0.427  0.307  0.478  1.0
  O  O20  1  0.427  0.307  0.022  1.0
  O  O21  1  0.573  0.693  0.978  1.0
  O  O22  1  0.015  0.887  0.750  1.0
  O  O23  1  0.985  0.113  0.250  1.0
  O  O24  1  0.222  0.934  0.996  1.0
  O  O25  1  0.778  0.066  0.004  1.0
  O  O26  1  0.778  0.066  0.496  1.0
  O  O27  1  0.222  0.934  0.504  1.0
  O  O28  1  0.616  0.612  0.750  1.0
  O  O29  1  0.384  0.388  0.250  1.0
  O  O30  1  0.559  0.977  0.885  1.0
  O  O31  1  0.441  0.023  0.115  1.0
  O  O32  1  0.441  0.023  0.385  1.0
  O  O33  1  0.559  0.977  0.615  1.0
  O  O34  1  0.132  0.622  0.875  1.0
  O  O35  1  0.868  0.378  0.125  1.0
  O  O36  1  0.868  0.378  0.375  1.0
  O  O37  1  0.132  0.622  0.625  1.0
  O  O38  1  0.377  0.872  0.750  1.0
  O  O39  1  0.623  0.128  0.250  1.0
  O  O40  1  0.853  0.862  0.887  1.0
  O  O41  1  0.147  0.138  0.113  1.0
  O  O42  1  0.147  0.138  0.387  1.0
  O  O43  1  0.853  0.862  0.613  1.0
  O  O44  1  0.780  0.175  0.750  1.0
  O  O45  1  0.220  0.825  0.250  1.0
[/CIF]
.
The compound described by U3P2(PbO8)2 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), one O(8), and one O(9) atom to form distorted UO7 pentagonal bipyramids that share corners with three equivalent P(1)O4 tetrahedra and  an edgeedge with one U(1)O7 pentagonal bipyramid. In the second U site, U(2) is bonded in a 8-coordinate geometry to one O(10), one O(3), one O(5), one O(8), two equivalent O(6), and two equivalent O(9) atoms. Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(6), and two equivalent O(2) atoms. P(1) is bonded to one O(2), one O(4), one O(6), and one O(9) atom to form PO4 tetrahedra that share corners with three equivalent U(1)O7 pentagonal bipyramids. There are ten inequivalent O sites. In the first O site, O(7) is bonded in a single-bond geometry to one U(1) atom. In the second O site, O(8) is bonded in a trigonal planar geometry to one U(2) and two equivalent U(1) atoms. In the third O site, O(9) is bonded in a distorted single-bond geometry to one U(1), one U(2), and one P(1) atom. In the fourth O site, O(10) is bonded in a single-bond geometry to one U(2) atom. In the fifth O site, O(1) is bonded in a distorted bent 120 degrees geometry to one U(1) and one Pb(1) atom. In the sixth O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Pb(1) and one P(1) atom. In the seventh O site, O(3) is bonded in a trigonal planar geometry to one U(2) and two equivalent U(1) atoms. In the eighth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one U(1) and one P(1) atom. In the ninth O site, O(5) is bonded in a single-bond geometry to one U(2) atom. In the tenth O site, O(6) is bonded in a distorted single-bond geometry to one U(1), one U(2), one Pb(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_U3P2(PbO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.038
_cell_length_b   6.864
_cell_length_c   17.106
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   107.661
_symmetry_Int_Tables_number   1
_cell_volume   787.463
_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
  U  U0  1  0.198  0.896  0.858  1.0
  U  U1  1  0.802  0.104  0.142  1.0
  U  U2  1  0.802  0.104  0.358  1.0
  U  U3  1  0.198  0.896  0.642  1.0
  U  U4  1  0.700  0.896  0.750  1.0
  U  U5  1  0.300  0.104  0.250  1.0
  P  P6  1  0.694  0.901  0.943  1.0
  P  P7  1  0.306  0.099  0.057  1.0
  P  P8  1  0.306  0.099  0.443  1.0
  P  P9  1  0.694  0.901  0.557  1.0
  Pb  Pb10  1  0.602  0.385  0.900  1.0
  Pb  Pb11  1  0.398  0.615  0.100  1.0
  Pb  Pb12  1  0.398  0.615  0.400  1.0
  Pb  Pb13  1  0.602  0.385  0.600  1.0
  O  O14  1  0.719  0.817  0.354  1.0
  O  O15  1  0.281  0.183  0.646  1.0
  O  O16  1  0.281  0.183  0.854  1.0
  O  O17  1  0.719  0.817  0.146  1.0
  O  O18  1  0.573  0.693  0.522  1.0
  O  O19  1  0.427  0.307  0.478  1.0
  O  O20  1  0.427  0.307  0.022  1.0
  O  O21  1  0.573  0.693  0.978  1.0
  O  O22  1  0.015  0.887  0.750  1.0
  O  O23  1  0.985  0.113  0.250  1.0
  O  O24  1  0.222  0.934  0.996  1.0
  O  O25  1  0.778  0.066  0.004  1.0
  O  O26  1  0.778  0.066  0.496  1.0
  O  O27  1  0.222  0.934  0.504  1.0
  O  O28  1  0.616  0.612  0.750  1.0
  O  O29  1  0.384  0.388  0.250  1.0
  O  O30  1  0.559  0.977  0.885  1.0
  O  O31  1  0.441  0.023  0.115  1.0
  O  O32  1  0.441  0.023  0.385  1.0
  O  O33  1  0.559  0.977  0.615  1.0
  O  O34  1  0.132  0.622  0.875  1.0
  O  O35  1  0.868  0.378  0.125  1.0
  O  O36  1  0.868  0.378  0.375  1.0
  O  O37  1  0.132  0.622  0.625  1.0
  O  O38  1  0.377  0.872  0.750  1.0
  O  O39  1  0.623  0.128  0.250  1.0
  O  O40  1  0.853  0.862  0.887  1.0
  O  O41  1  0.147  0.138  0.113  1.0
  O  O42  1  0.147  0.138  0.387  1.0
  O  O43  1  0.853  0.862  0.613  1.0
  O  O44  1  0.780  0.175  0.750  1.0
  O  O45  1  0.220  0.825  0.250  1.0
[/CIF]
.