The material structure described by Yb2Sn crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 14-coordinate geometry to two equivalent Yb(1), six equivalent Yb(2), and six equivalent Sn(1) atoms. In the second Yb site, Yb(2) is bonded to six equivalent Yb(1) and five equivalent Sn(1) atoms to form a mixture of distorted corner and face-sharing YbYb6Sn5 trigonal bipyramids. Sn(1) is bonded in a 11-coordinate geometry to five equivalent Yb(2) and six equivalent Yb(1) atoms. is represented by the CIF card [CIF]
data_Yb2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.281
_cell_length_b   5.281
_cell_length_c   6.968
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   168.329
_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
  Yb  Yb0  1  0.000  0.000  0.000  1.0
  Yb  Yb1  1  0.667  0.333  0.250  1.0
  Yb  Yb2  1  0.333  0.667  0.750  1.0
  Yb  Yb3  1  0.000  0.000  0.500  1.0
  Sn  Sn4  1  0.333  0.667  0.250  1.0
  Sn  Sn5  1  0.667  0.333  0.750  1.0
[/CIF]
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The material structure described by Yb2Sn crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 14-coordinate geometry to two equivalent Yb(1), six equivalent Yb(2), and six equivalent Sn(1) atoms. In the second Yb site, Yb(2) is bonded to six equivalent Yb(1) and five equivalent Sn(1) atoms to form a mixture of distorted corner and face-sharing YbYb6Sn5 trigonal bipyramids. Sn(1) is bonded in a 11-coordinate geometry to five equivalent Yb(2) and six equivalent Yb(1) atoms. is represented by the CIF card [CIF]
data_Yb2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.281
_cell_length_b   5.281
_cell_length_c   6.968
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   168.329
_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
  Yb  Yb0  1  0.000  0.000  0.000  1.0
  Yb  Yb1  1  0.667  0.333  0.250  1.0
  Yb  Yb2  1  0.333  0.667  0.750  1.0
  Yb  Yb3  1  0.000  0.000  0.500  1.0
  Sn  Sn4  1  0.333  0.667  0.250  1.0
  Sn  Sn5  1  0.667  0.333  0.750  1.0
[/CIF]
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