The material structure described by Ti2Sn crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to six equivalent Ti(2) and five equivalent Sn(1) atoms to form a mixture of corner and face-sharing TiTi6Sn5 trigonal bipyramids. In the second Ti site, Ti(2) is bonded in a 14-coordinate geometry to two equivalent Ti(2), six equivalent Ti(1), and six equivalent Sn(1) atoms. Sn(1) is bonded in a 11-coordinate geometry to five equivalent Ti(1) and six equivalent Ti(2) atoms. is represented by the CIF file [CIF]
data_Ti2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.735
_cell_length_b   4.735
_cell_length_c   5.619
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   109.115
_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
  Ti  Ti0  1  0.667  0.333  0.250  1.0
  Ti  Ti1  1  0.333  0.667  0.750  1.0
  Ti  Ti2  1  0.000  0.000  1.000  1.0
  Ti  Ti3  1  0.000  0.000  0.500  1.0
  Sn  Sn4  1  0.667  0.333  0.750  1.0
  Sn  Sn5  1  0.333  0.667  0.250  1.0
[/CIF]
.
The material structure described by Ti2Sn crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to six equivalent Ti(2) and five equivalent Sn(1) atoms to form a mixture of corner and face-sharing TiTi6Sn5 trigonal bipyramids. In the second Ti site, Ti(2) is bonded in a 14-coordinate geometry to two equivalent Ti(2), six equivalent Ti(1), and six equivalent Sn(1) atoms. Sn(1) is bonded in a 11-coordinate geometry to five equivalent Ti(1) and six equivalent Ti(2) atoms. is represented by the CIF file [CIF]
data_Ti2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.735
_cell_length_b   4.735
_cell_length_c   5.619
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   109.115
_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
  Ti  Ti0  1  0.667  0.333  0.250  1.0
  Ti  Ti1  1  0.333  0.667  0.750  1.0
  Ti  Ti2  1  0.000  0.000  1.000  1.0
  Ti  Ti3  1  0.000  0.000  0.500  1.0
  Sn  Sn4  1  0.667  0.333  0.750  1.0
  Sn  Sn5  1  0.333  0.667  0.250  1.0
[/CIF]
.