The crystal structure described by U2Nd3O10 is alpha bismuth trifluoride-derived structured and crystallizes in the monoclinic C2/m space group. U(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(3) atoms. In the second Nd site, Nd(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent U(1) and two equivalent Nd(1) atoms to form ONd2U2 tetrahedra that share corners with eight equivalent O(2)Nd2U2 tetrahedra, corners with eight equivalent O(3)Nd3U tetrahedra, edges with two equivalent O(1)Nd2U2 tetrahedra, edges with two equivalent O(2)Nd2U2 tetrahedra, and edges with two equivalent O(3)Nd3U tetrahedra. In the second O site, O(2) is bonded to two equivalent U(1), one Nd(1), and one Nd(2) atom to form ONd2U2 tetrahedra that share corners with four equivalent O(1)Nd2U2 tetrahedra, corners with four equivalent O(2)Nd2U2 tetrahedra, corners with eight equivalent O(3)Nd3U tetrahedra,  an edgeedge with one O(1)Nd2U2 tetrahedra, edges with two equivalent O(3)Nd3U tetrahedra, and edges with three equivalent O(2)Nd2U2 tetrahedra. In the third O site, O(3) is bonded to one U(1), one Nd(2), and two equivalent Nd(1) atoms to form ONd3U tetrahedra that share corners with four equivalent O(1)Nd2U2 tetrahedra, corners with four equivalent O(3)Nd3U tetrahedra, corners with eight equivalent O(2)Nd2U2 tetrahedra,  an edgeedge with one O(1)Nd2U2 tetrahedra, edges with two equivalent O(2)Nd2U2 tetrahedra, and edges with three equivalent O(3)Nd3U tetrahedra. is represented by the CIF file [CIF]
data_Nd3U2O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.580
_cell_length_b   6.580
_cell_length_c   8.478
_cell_angle_alpha   51.801
_cell_angle_beta   51.801
_cell_angle_gamma   49.089
_symmetry_Int_Tables_number   1
_cell_volume   203.416
_cell_formula_units_Z   1
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
  Nd  Nd0  1  0.399  0.399  0.903  1.0
  Nd  Nd1  1  0.000  0.000  0.500  1.0
  Nd  Nd2  1  0.601  0.601  0.097  1.0
  U  U3  1  0.193  0.193  0.708  1.0
  U  U4  1  0.807  0.807  0.292  1.0
  O  O5  1  0.225  0.775  0.000  1.0
  O  O6  1  0.862  0.354  0.609  1.0
  O  O7  1  0.471  0.945  0.213  1.0
  O  O8  1  0.775  0.225  0.000  1.0
  O  O9  1  0.055  0.529  0.787  1.0
  O  O10  1  0.354  0.862  0.609  1.0
  O  O11  1  0.945  0.471  0.213  1.0
  O  O12  1  0.646  0.138  0.391  1.0
  O  O13  1  0.529  0.055  0.787  1.0
  O  O14  1  0.138  0.646  0.391  1.0
[/CIF]
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The crystal structure described by U2Nd3O10 is alpha bismuth trifluoride-derived structured and crystallizes in the monoclinic C2/m space group. U(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(3) atoms. In the second Nd site, Nd(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent U(1) and two equivalent Nd(1) atoms to form ONd2U2 tetrahedra that share corners with eight equivalent O(2)Nd2U2 tetrahedra, corners with eight equivalent O(3)Nd3U tetrahedra, edges with two equivalent O(1)Nd2U2 tetrahedra, edges with two equivalent O(2)Nd2U2 tetrahedra, and edges with two equivalent O(3)Nd3U tetrahedra. In the second O site, O(2) is bonded to two equivalent U(1), one Nd(1), and one Nd(2) atom to form ONd2U2 tetrahedra that share corners with four equivalent O(1)Nd2U2 tetrahedra, corners with four equivalent O(2)Nd2U2 tetrahedra, corners with eight equivalent O(3)Nd3U tetrahedra,  an edgeedge with one O(1)Nd2U2 tetrahedra, edges with two equivalent O(3)Nd3U tetrahedra, and edges with three equivalent O(2)Nd2U2 tetrahedra. In the third O site, O(3) is bonded to one U(1), one Nd(2), and two equivalent Nd(1) atoms to form ONd3U tetrahedra that share corners with four equivalent O(1)Nd2U2 tetrahedra, corners with four equivalent O(3)Nd3U tetrahedra, corners with eight equivalent O(2)Nd2U2 tetrahedra,  an edgeedge with one O(1)Nd2U2 tetrahedra, edges with two equivalent O(2)Nd2U2 tetrahedra, and edges with three equivalent O(3)Nd3U tetrahedra. is represented by the CIF file [CIF]
data_Nd3U2O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.580
_cell_length_b   6.580
_cell_length_c   8.478
_cell_angle_alpha   51.801
_cell_angle_beta   51.801
_cell_angle_gamma   49.089
_symmetry_Int_Tables_number   1
_cell_volume   203.416
_cell_formula_units_Z   1
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
  Nd  Nd0  1  0.399  0.399  0.903  1.0
  Nd  Nd1  1  0.000  0.000  0.500  1.0
  Nd  Nd2  1  0.601  0.601  0.097  1.0
  U  U3  1  0.193  0.193  0.708  1.0
  U  U4  1  0.807  0.807  0.292  1.0
  O  O5  1  0.225  0.775  0.000  1.0
  O  O6  1  0.862  0.354  0.609  1.0
  O  O7  1  0.471  0.945  0.213  1.0
  O  O8  1  0.775  0.225  0.000  1.0
  O  O9  1  0.055  0.529  0.787  1.0
  O  O10  1  0.354  0.862  0.609  1.0
  O  O11  1  0.945  0.471  0.213  1.0
  O  O12  1  0.646  0.138  0.391  1.0
  O  O13  1  0.529  0.055  0.787  1.0
  O  O14  1  0.138  0.646  0.391  1.0
[/CIF]
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