The material structure described by U2Pt2Sn crystallizes in the tetragonal P4_2/mnm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 10-coordinate geometry to six equivalent Pt(1) and four equivalent Sn(1) atoms. In the second U site, U(2) is bonded in a 6-coordinate geometry to six equivalent Pt(1) and four equivalent Sn(1) atoms. Pt(1) is bonded in a 8-coordinate geometry to three equivalent U(1), three equivalent U(2), and two equivalent Sn(1) atoms. Sn(1) is bonded to four equivalent U(1), four equivalent U(2), and four equivalent Pt(1) atoms to form a mixture of distorted face and corner-sharing SnU8Pt4 cuboctahedra. is represented by the CIF card [CIF]
data_U2SnPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.746
_cell_length_b   7.746
_cell_length_c   7.316
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   438.995
_cell_formula_units_Z   4
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  0.687  0.313  0.500  1.0
  U  U1  1  0.313  0.687  0.500  1.0
  U  U2  1  0.187  0.187  0.000  1.0
  U  U3  1  0.813  0.813  0.000  1.0
  U  U4  1  0.846  0.846  0.500  1.0
  U  U5  1  0.154  0.154  0.500  1.0
  U  U6  1  0.346  0.654  0.000  1.0
  U  U7  1  0.654  0.346  0.000  1.0
  Sn  Sn8  1  0.500  0.000  0.250  1.0
  Sn  Sn9  1  0.000  0.500  0.750  1.0
  Sn  Sn10  1  0.500  0.000  0.750  1.0
  Sn  Sn11  1  0.000  0.500  0.250  1.0
  Pt  Pt12  1  0.869  0.131  0.219  1.0
  Pt  Pt13  1  0.131  0.869  0.219  1.0
  Pt  Pt14  1  0.369  0.369  0.719  1.0
  Pt  Pt15  1  0.631  0.631  0.719  1.0
  Pt  Pt16  1  0.131  0.869  0.781  1.0
  Pt  Pt17  1  0.869  0.131  0.781  1.0
  Pt  Pt18  1  0.631  0.631  0.281  1.0
  Pt  Pt19  1  0.369  0.369  0.281  1.0
[/CIF]
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The material structure described by U2Pt2Sn crystallizes in the tetragonal P4_2/mnm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 10-coordinate geometry to six equivalent Pt(1) and four equivalent Sn(1) atoms. In the second U site, U(2) is bonded in a 6-coordinate geometry to six equivalent Pt(1) and four equivalent Sn(1) atoms. Pt(1) is bonded in a 8-coordinate geometry to three equivalent U(1), three equivalent U(2), and two equivalent Sn(1) atoms. Sn(1) is bonded to four equivalent U(1), four equivalent U(2), and four equivalent Pt(1) atoms to form a mixture of distorted face and corner-sharing SnU8Pt4 cuboctahedra. is represented by the CIF card [CIF]
data_U2SnPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.746
_cell_length_b   7.746
_cell_length_c   7.316
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   438.995
_cell_formula_units_Z   4
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  0.687  0.313  0.500  1.0
  U  U1  1  0.313  0.687  0.500  1.0
  U  U2  1  0.187  0.187  0.000  1.0
  U  U3  1  0.813  0.813  0.000  1.0
  U  U4  1  0.846  0.846  0.500  1.0
  U  U5  1  0.154  0.154  0.500  1.0
  U  U6  1  0.346  0.654  0.000  1.0
  U  U7  1  0.654  0.346  0.000  1.0
  Sn  Sn8  1  0.500  0.000  0.250  1.0
  Sn  Sn9  1  0.000  0.500  0.750  1.0
  Sn  Sn10  1  0.500  0.000  0.750  1.0
  Sn  Sn11  1  0.000  0.500  0.250  1.0
  Pt  Pt12  1  0.869  0.131  0.219  1.0
  Pt  Pt13  1  0.131  0.869  0.219  1.0
  Pt  Pt14  1  0.369  0.369  0.719  1.0
  Pt  Pt15  1  0.631  0.631  0.719  1.0
  Pt  Pt16  1  0.131  0.869  0.781  1.0
  Pt  Pt17  1  0.869  0.131  0.781  1.0
  Pt  Pt18  1  0.631  0.631  0.281  1.0
  Pt  Pt19  1  0.369  0.369  0.281  1.0
[/CIF]
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