The material described by U2NiSb4 crystallizes in the tetragonal P-4m2 space group. U(1) is bonded in a 11-coordinate geometry to two equivalent Ni(1), two equivalent Sb(1), two equivalent Sb(2), and five equivalent Sb(3) atoms. Ni(1) is bonded in a distorted body-centered cubic geometry to four equivalent U(1) and four equivalent Sb(3) atoms. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Sb(2) atoms. In the second Sb site, Sb(2) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Sb(1) atoms. In the third Sb site, Sb(3) is bonded in a 7-coordinate geometry to five equivalent U(1) and two equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2NiSb4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.348
_cell_length_b   4.349
_cell_length_c   9.273
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   175.339
_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
  U  U0  1  0.500  0.000  0.232  1.0
  U  U1  1  0.000  0.500  0.768  1.0
  Ni  Ni2  1  0.000  0.000  1.000  1.0
  Sb  Sb3  1  0.000  0.000  0.500  1.0
  Sb  Sb4  1  0.500  0.500  0.500  1.0
  Sb  Sb5  1  0.500  0.000  0.863  1.0
  Sb  Sb6  1  0.000  0.500  0.137  1.0
[/CIF]
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The material described by U2NiSb4 crystallizes in the tetragonal P-4m2 space group. U(1) is bonded in a 11-coordinate geometry to two equivalent Ni(1), two equivalent Sb(1), two equivalent Sb(2), and five equivalent Sb(3) atoms. Ni(1) is bonded in a distorted body-centered cubic geometry to four equivalent U(1) and four equivalent Sb(3) atoms. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Sb(2) atoms. In the second Sb site, Sb(2) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Sb(1) atoms. In the third Sb site, Sb(3) is bonded in a 7-coordinate geometry to five equivalent U(1) and two equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2NiSb4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.348
_cell_length_b   4.349
_cell_length_c   9.273
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   175.339
_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
  U  U0  1  0.500  0.000  0.232  1.0
  U  U1  1  0.000  0.500  0.768  1.0
  Ni  Ni2  1  0.000  0.000  1.000  1.0
  Sb  Sb3  1  0.000  0.000  0.500  1.0
  Sb  Sb4  1  0.500  0.500  0.500  1.0
  Sb  Sb5  1  0.500  0.000  0.863  1.0
  Sb  Sb6  1  0.000  0.500  0.137  1.0
[/CIF]
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