data_Li2GaSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.98
_cell_length_b   2.98
_cell_length_c   7.93
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   95.88
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2GaSi
_chemical_formula_sum   'Li2 Ga1 Si1'
_cell_volume   70.17
_cell_formula_units_Z   1
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  Li1  1  0.0  0.0  0.26  1.0
  Li  Li2  1  1.0  0.0  0.6  1.0
  Ga  Ga0  1  1.0  0.0  0.16  1.0
  Si  Si3  1  0.0  0.0  0.87  1.0

data_Li2GaSi
_symmetry_space_group_name_H-M   Cmm2
_cell_length_a   4.0
_cell_length_b   4.43
_cell_length_c   7.93
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   35
_chemical_formula_structural   Li2GaSi
_chemical_formula_sum   'Li4 Ga2 Si2'
_cell_volume   140.34
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, z'
  3  '-x, y, z'
  4  'x, -y, z'
  5  'x+1/2, y+1/2, z'
  6  '-x+1/2, -y+1/2, z'
  7  '-x+1/2, y+1/2, z'
  8  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.4  1.0
  Li  Li1  2  0.0  0.0  0.74  1.0
  Ga  Ga2  2  0.0  0.0  0.84  1.0
  Si  Si3  2  0.0  0.0  0.13  1.0

Li Li Ga Si
Li2GaSi crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Li2GaSi clusters. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a single-bond geometry to one Ga(1) atom. The Li(1)-Ga(1) bond length is 0.84 Å. In the second Li site, Li(2) is bonded in a single-bond geometry to one Si(1) atom. The Li(2)-Si(1) bond length is 2.11 Å. Ga(1) is bonded in a single-bond geometry to one Li(1) and one Si(1) atom. The Ga(1)-Si(1) bond length is 2.30 Å. Si(1) is bonded in a distorted linear geometry to one Li(2) and one Ga(1) atom.