The structure described by LiYSi crystallizes in the hexagonal P-62m space group. Li(1) is bonded to two equivalent Si(1) and two equivalent Si(2) atoms to form a mixture of distorted edge and corner-sharing LiSi4 tetrahedra. Y(1) is bonded in a 5-coordinate geometry to one Si(2) and four equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(2) is bonded in a 9-coordinate geometry to six equivalent Li(1) and three equivalent Y(1) atoms. In the second Si site, Si(1) is bonded in a 9-coordinate geometry to three equivalent Li(1) and six equivalent Y(1) atoms. is represented by the CIF file [CIF]
data_LiYSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.035
_cell_length_b   7.035
_cell_length_c   4.217
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   180.759
_cell_formula_units_Z   3
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
  Li  Li0  1  0.233  0.000  0.500  1.0
  Li  Li1  1  0.767  0.767  0.500  1.0
  Li  Li2  1  0.000  0.233  0.500  1.0
  Y  Y3  1  0.000  0.575  0.000  1.0
  Y  Y4  1  0.575  0.000  0.000  1.0
  Y  Y5  1  0.425  0.425  0.000  1.0
  Si  Si6  1  0.333  0.667  0.500  1.0
  Si  Si7  1  0.667  0.333  0.500  1.0
  Si  Si8  1  0.000  0.000  0.000  1.0
[/CIF]
.
The structure described by LiYSi crystallizes in the hexagonal P-62m space group. Li(1) is bonded to two equivalent Si(1) and two equivalent Si(2) atoms to form a mixture of distorted edge and corner-sharing LiSi4 tetrahedra. Y(1) is bonded in a 5-coordinate geometry to one Si(2) and four equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(2) is bonded in a 9-coordinate geometry to six equivalent Li(1) and three equivalent Y(1) atoms. In the second Si site, Si(1) is bonded in a 9-coordinate geometry to three equivalent Li(1) and six equivalent Y(1) atoms. is represented by the CIF file [CIF]
data_LiYSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.035
_cell_length_b   7.035
_cell_length_c   4.217
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   180.759
_cell_formula_units_Z   3
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
  Li  Li0  1  0.233  0.000  0.500  1.0
  Li  Li1  1  0.767  0.767  0.500  1.0
  Li  Li2  1  0.000  0.233  0.500  1.0
  Y  Y3  1  0.000  0.575  0.000  1.0
  Y  Y4  1  0.575  0.000  0.000  1.0
  Y  Y5  1  0.425  0.425  0.000  1.0
  Si  Si6  1  0.333  0.667  0.500  1.0
  Si  Si7  1  0.667  0.333  0.500  1.0
  Si  Si8  1  0.000  0.000  0.000  1.0
[/CIF]
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