The crystal structure described by Lu6U1O12 crystallizes in the trigonal R-3 space group. U(1) is bonded in an octahedral geometry to six equivalent O(2) atoms. Lu(1) is bonded in a 7-coordinate geometry to three equivalent O(2) and four equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 4-coordinate geometry to one U(1) and three equivalent Lu(1) atoms. In the second O site, O(1) is bonded to four equivalent Lu(1) atoms to form a mixture of corner and edge-sharing OLu4 tetrahedra. is represented by the CIF card [CIF]
data_Lu6UO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.373
_cell_length_b   6.373
_cell_length_c   6.373
_cell_angle_alpha   99.241
_cell_angle_beta   99.241
_cell_angle_gamma   99.241
_symmetry_Int_Tables_number   1
_cell_volume   247.471
_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
  Lu  Lu0  1  0.673  0.391  0.854  1.0
  Lu  Lu1  1  0.391  0.854  0.673  1.0
  Lu  Lu2  1  0.854  0.673  0.391  1.0
  Lu  Lu3  1  0.327  0.609  0.146  1.0
  Lu  Lu4  1  0.609  0.146  0.327  1.0
  Lu  Lu5  1  0.146  0.327  0.609  1.0
  U  U6  1  0.000  0.000  0.000  1.0
  O  O7  1  0.423  0.178  0.585  1.0
  O  O8  1  0.178  0.585  0.423  1.0
  O  O9  1  0.585  0.423  0.178  1.0
  O  O10  1  0.577  0.822  0.415  1.0
  O  O11  1  0.822  0.415  0.577  1.0
  O  O12  1  0.415  0.577  0.822  1.0
  O  O13  1  0.050  0.914  0.686  1.0
  O  O14  1  0.314  0.950  0.086  1.0
  O  O15  1  0.086  0.314  0.950  1.0
  O  O16  1  0.950  0.086  0.314  1.0
  O  O17  1  0.686  0.050  0.914  1.0
  O  O18  1  0.914  0.686  0.050  1.0
[/CIF]
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The crystal structure described by Lu6U1O12 crystallizes in the trigonal R-3 space group. U(1) is bonded in an octahedral geometry to six equivalent O(2) atoms. Lu(1) is bonded in a 7-coordinate geometry to three equivalent O(2) and four equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 4-coordinate geometry to one U(1) and three equivalent Lu(1) atoms. In the second O site, O(1) is bonded to four equivalent Lu(1) atoms to form a mixture of corner and edge-sharing OLu4 tetrahedra. is represented by the CIF card [CIF]
data_Lu6UO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.373
_cell_length_b   6.373
_cell_length_c   6.373
_cell_angle_alpha   99.241
_cell_angle_beta   99.241
_cell_angle_gamma   99.241
_symmetry_Int_Tables_number   1
_cell_volume   247.471
_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
  Lu  Lu0  1  0.673  0.391  0.854  1.0
  Lu  Lu1  1  0.391  0.854  0.673  1.0
  Lu  Lu2  1  0.854  0.673  0.391  1.0
  Lu  Lu3  1  0.327  0.609  0.146  1.0
  Lu  Lu4  1  0.609  0.146  0.327  1.0
  Lu  Lu5  1  0.146  0.327  0.609  1.0
  U  U6  1  0.000  0.000  0.000  1.0
  O  O7  1  0.423  0.178  0.585  1.0
  O  O8  1  0.178  0.585  0.423  1.0
  O  O9  1  0.585  0.423  0.178  1.0
  O  O10  1  0.577  0.822  0.415  1.0
  O  O11  1  0.822  0.415  0.577  1.0
  O  O12  1  0.415  0.577  0.822  1.0
  O  O13  1  0.050  0.914  0.686  1.0
  O  O14  1  0.314  0.950  0.086  1.0
  O  O15  1  0.086  0.314  0.950  1.0
  O  O16  1  0.950  0.086  0.314  1.0
  O  O17  1  0.686  0.050  0.914  1.0
  O  O18  1  0.914  0.686  0.050  1.0
[/CIF]
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