The crystal structure described by Li2AlSi crystallizes in the hexagonal P6_3/mmc space group. Li(1) is bonded in a 11-coordinate geometry to four equivalent Li(1), three equivalent Al(1), and four equivalent Si(1) atoms. Al(1) is bonded in a 9-coordinate geometry to six equivalent Li(1) and three equivalent Si(1) atoms. Si(1) is bonded in a 11-coordinate geometry to eight equivalent Li(1) and three equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_Li2AlSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.314
_cell_length_b   4.314
_cell_length_c   8.160
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   131.517
_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
  Li  Li0  1  0.667  0.333  0.574  1.0
  Li  Li1  1  0.333  0.667  0.426  1.0
  Li  Li2  1  0.333  0.667  0.074  1.0
  Li  Li3  1  0.667  0.333  0.926  1.0
  Al  Al4  1  0.000  0.000  0.750  1.0
  Al  Al5  1  0.000  0.000  0.250  1.0
  Si  Si6  1  0.333  0.667  0.750  1.0
  Si  Si7  1  0.667  0.333  0.250  1.0
[/CIF]
.
The crystal structure described by Li2AlSi crystallizes in the hexagonal P6_3/mmc space group. Li(1) is bonded in a 11-coordinate geometry to four equivalent Li(1), three equivalent Al(1), and four equivalent Si(1) atoms. Al(1) is bonded in a 9-coordinate geometry to six equivalent Li(1) and three equivalent Si(1) atoms. Si(1) is bonded in a 11-coordinate geometry to eight equivalent Li(1) and three equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_Li2AlSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.314
_cell_length_b   4.314
_cell_length_c   8.160
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   131.517
_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
  Li  Li0  1  0.667  0.333  0.574  1.0
  Li  Li1  1  0.333  0.667  0.426  1.0
  Li  Li2  1  0.333  0.667  0.074  1.0
  Li  Li3  1  0.667  0.333  0.926  1.0
  Al  Al4  1  0.000  0.000  0.750  1.0
  Al  Al5  1  0.000  0.000  0.250  1.0
  Si  Si6  1  0.333  0.667  0.750  1.0
  Si  Si7  1  0.667  0.333  0.250  1.0
[/CIF]
.