The material described by YCuSn crystallizes in the hexagonal P6_3mc space group. Y(1) is bonded in a 12-coordinate geometry to six equivalent Cu(1) and six equivalent Sn(1) atoms. Cu(1) is bonded in a 10-coordinate geometry to six equivalent Y(1) and four equivalent Sn(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to six equivalent Y(1) and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_YCuSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.513
_cell_length_b   4.513
_cell_length_c   7.320
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   129.144
_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
  Y  Y0  1  0.000  0.000  0.999  1.0
  Y  Y1  1  0.000  0.000  0.499  1.0
  Cu  Cu2  1  0.667  0.333  0.321  1.0
  Cu  Cu3  1  0.333  0.667  0.821  1.0
  Sn  Sn4  1  0.333  0.667  0.229  1.0
  Sn  Sn5  1  0.667  0.333  0.729  1.0
[/CIF]
.
The material described by YCuSn crystallizes in the hexagonal P6_3mc space group. Y(1) is bonded in a 12-coordinate geometry to six equivalent Cu(1) and six equivalent Sn(1) atoms. Cu(1) is bonded in a 10-coordinate geometry to six equivalent Y(1) and four equivalent Sn(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to six equivalent Y(1) and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_YCuSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.513
_cell_length_b   4.513
_cell_length_c   7.320
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   129.144
_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
  Y  Y0  1  0.000  0.000  0.999  1.0
  Y  Y1  1  0.000  0.000  0.499  1.0
  Cu  Cu2  1  0.667  0.333  0.321  1.0
  Cu  Cu3  1  0.333  0.667  0.821  1.0
  Sn  Sn4  1  0.333  0.667  0.229  1.0
  Sn  Sn5  1  0.667  0.333  0.729  1.0
[/CIF]
.