The crystal structure described by Li2Ga7 crystallizes in the monoclinic Cm space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a 9-coordinate geometry to one Ga(10), two equivalent Ga(1), two equivalent Ga(3), two equivalent Ga(5), and two equivalent Ga(7) atoms. In the second Li site, Li(2) is bonded in a 9-coordinate geometry to one Ga(1), one Ga(2), one Ga(3), one Ga(4), one Ga(5), one Ga(6), one Ga(7), one Ga(8), and one Ga(9) atom. In the third Li site, Li(3) is bonded in a 9-coordinate geometry to one Ga(9), two equivalent Ga(1), two equivalent Ga(3), two equivalent Ga(5), and two equivalent Ga(7) atoms. There are ten inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Li(1), one Li(2), one Li(3), one Ga(10), one Ga(3), one Ga(4), one Ga(5), one Ga(7), and one Ga(8) atom. In the second Ga site, Ga(2) is bonded in a 8-coordinate geometry to two equivalent Li(2), one Ga(10), one Ga(6), two equivalent Ga(3), and two equivalent Ga(7) atoms. In the third Ga site, Ga(3) is bonded in a 9-coordinate geometry to one Li(1), one Li(2), one Li(3), one Ga(1), one Ga(2), one Ga(5), one Ga(6), one Ga(7), and one Ga(9) atom. In the fourth Ga site, Ga(4) is bonded in a 8-coordinate geometry to two equivalent Li(2), one Ga(8), one Ga(9), two equivalent Ga(1), and two equivalent Ga(5) atoms. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to one Li(1), one Li(2), one Li(3), one Ga(1), one Ga(3), one Ga(4), one Ga(5), one Ga(6), and one Ga(7) atom. In the sixth Ga site, Ga(6) is bonded in a 8-coordinate geometry to two equivalent Li(2), one Ga(2), one Ga(8), two equivalent Ga(3), and two equivalent Ga(5) atoms. In the seventh Ga site, Ga(7) is bonded in a 9-coordinate geometry to one Li(1), one Li(2), one Li(3), one Ga(1), one Ga(2), one Ga(3), one Ga(5), one Ga(7), and one Ga(8) atom. In the eighth Ga site, Ga(8) is bonded in a 8-coordinate geometry to two equivalent Li(2), one Ga(4), one Ga(6), two equivalent Ga(1), and two equivalent Ga(7) atoms. In the ninth Ga site, Ga(9) is bonded in a distorted hexagonal pyramidal geometry to one Li(3), two equivalent Li(2), one Ga(10), one Ga(4), and two equivalent Ga(3) atoms. In the tenth Ga site, Ga(10) is bonded in a 5-coordinate geometry to one Li(1), one Ga(2), one Ga(9), and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_Li2Ga7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.362
_cell_length_b   7.375
_cell_length_c   7.375
_cell_angle_alpha   69.201
_cell_angle_beta   69.421
_cell_angle_gamma   69.421
_symmetry_Int_Tables_number   1
_cell_volume   338.436
_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  0.520  0.117  0.117  1.0
  Li  Li1  1  0.889  0.885  0.478  1.0
  Li  Li2  1  0.889  0.478  0.885  1.0
  Li  Li3  1  0.460  0.883  0.883  1.0
  Ga  Ga4  1  0.710  0.698  0.184  1.0
  Ga  Ga5  1  0.710  0.184  0.698  1.0
  Ga  Ga6  1  0.187  0.704  0.704  1.0
  Ga  Ga7  1  0.295  0.299  0.811  1.0
  Ga  Ga8  1  0.295  0.811  0.299  1.0
  Ga  Ga9  1  0.817  0.298  0.298  1.0
  Ga  Ga10  1  0.487  0.490  0.175  1.0
  Ga  Ga11  1  0.487  0.175  0.490  1.0
  Ga  Ga12  1  0.171  0.487  0.487  1.0
  Ga  Ga13  1  0.510  0.506  0.826  1.0
  Ga  Ga14  1  0.510  0.826  0.506  1.0
  Ga  Ga15  1  0.826  0.510  0.510  1.0
  Ga  Ga16  1  0.077  0.079  0.079  1.0
  Ga  Ga17  1  0.926  0.919  0.919  1.0
[/CIF]
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The crystal structure described by Li2Ga7 crystallizes in the monoclinic Cm space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a 9-coordinate geometry to one Ga(10), two equivalent Ga(1), two equivalent Ga(3), two equivalent Ga(5), and two equivalent Ga(7) atoms. In the second Li site, Li(2) is bonded in a 9-coordinate geometry to one Ga(1), one Ga(2), one Ga(3), one Ga(4), one Ga(5), one Ga(6), one Ga(7), one Ga(8), and one Ga(9) atom. In the third Li site, Li(3) is bonded in a 9-coordinate geometry to one Ga(9), two equivalent Ga(1), two equivalent Ga(3), two equivalent Ga(5), and two equivalent Ga(7) atoms. There are ten inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Li(1), one Li(2), one Li(3), one Ga(10), one Ga(3), one Ga(4), one Ga(5), one Ga(7), and one Ga(8) atom. In the second Ga site, Ga(2) is bonded in a 8-coordinate geometry to two equivalent Li(2), one Ga(10), one Ga(6), two equivalent Ga(3), and two equivalent Ga(7) atoms. In the third Ga site, Ga(3) is bonded in a 9-coordinate geometry to one Li(1), one Li(2), one Li(3), one Ga(1), one Ga(2), one Ga(5), one Ga(6), one Ga(7), and one Ga(9) atom. In the fourth Ga site, Ga(4) is bonded in a 8-coordinate geometry to two equivalent Li(2), one Ga(8), one Ga(9), two equivalent Ga(1), and two equivalent Ga(5) atoms. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to one Li(1), one Li(2), one Li(3), one Ga(1), one Ga(3), one Ga(4), one Ga(5), one Ga(6), and one Ga(7) atom. In the sixth Ga site, Ga(6) is bonded in a 8-coordinate geometry to two equivalent Li(2), one Ga(2), one Ga(8), two equivalent Ga(3), and two equivalent Ga(5) atoms. In the seventh Ga site, Ga(7) is bonded in a 9-coordinate geometry to one Li(1), one Li(2), one Li(3), one Ga(1), one Ga(2), one Ga(3), one Ga(5), one Ga(7), and one Ga(8) atom. In the eighth Ga site, Ga(8) is bonded in a 8-coordinate geometry to two equivalent Li(2), one Ga(4), one Ga(6), two equivalent Ga(1), and two equivalent Ga(7) atoms. In the ninth Ga site, Ga(9) is bonded in a distorted hexagonal pyramidal geometry to one Li(3), two equivalent Li(2), one Ga(10), one Ga(4), and two equivalent Ga(3) atoms. In the tenth Ga site, Ga(10) is bonded in a 5-coordinate geometry to one Li(1), one Ga(2), one Ga(9), and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_Li2Ga7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.362
_cell_length_b   7.375
_cell_length_c   7.375
_cell_angle_alpha   69.201
_cell_angle_beta   69.421
_cell_angle_gamma   69.421
_symmetry_Int_Tables_number   1
_cell_volume   338.436
_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  0.520  0.117  0.117  1.0
  Li  Li1  1  0.889  0.885  0.478  1.0
  Li  Li2  1  0.889  0.478  0.885  1.0
  Li  Li3  1  0.460  0.883  0.883  1.0
  Ga  Ga4  1  0.710  0.698  0.184  1.0
  Ga  Ga5  1  0.710  0.184  0.698  1.0
  Ga  Ga6  1  0.187  0.704  0.704  1.0
  Ga  Ga7  1  0.295  0.299  0.811  1.0
  Ga  Ga8  1  0.295  0.811  0.299  1.0
  Ga  Ga9  1  0.817  0.298  0.298  1.0
  Ga  Ga10  1  0.487  0.490  0.175  1.0
  Ga  Ga11  1  0.487  0.175  0.490  1.0
  Ga  Ga12  1  0.171  0.487  0.487  1.0
  Ga  Ga13  1  0.510  0.506  0.826  1.0
  Ga  Ga14  1  0.510  0.826  0.506  1.0
  Ga  Ga15  1  0.826  0.510  0.510  1.0
  Ga  Ga16  1  0.077  0.079  0.079  1.0
  Ga  Ga17  1  0.926  0.919  0.919  1.0
[/CIF]
.