The crystal structure described by LiGaH4 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one H(1), one H(3), one H(4), and two equivalent H(2) atoms to form distorted LiH5 trigonal bipyramids that share corners with five equivalent Ga(1)H4 tetrahedra and  an edgeedge with one Li(1)H5 trigonal bipyramid. Ga(1) is bonded to one H(1), one H(2), one H(3), and one H(4) atom to form GaH4 tetrahedra that share corners with five equivalent Li(1)H5 trigonal bipyramids. There are four inequivalent H sites. In the first H site, H(1) is bonded in a bent 150 degrees geometry to one Li(1) and one Ga(1) atom. In the second H site, H(2) is bonded in a trigonal planar geometry to two equivalent Li(1) and one Ga(1) atom. In the third H site, H(3) is bonded in a bent 150 degrees geometry to one Li(1) and one Ga(1) atom. In the fourth H site, H(4) is bonded in a bent 150 degrees geometry to one Li(1) and one Ga(1) atom. is represented by the CIF file [CIF]
data_LiGaH4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.883
_cell_length_b   7.613
_cell_length_c   7.837
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   103.489
_symmetry_Int_Tables_number   1
_cell_volume   283.276
_cell_formula_units_Z   4
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  0.743  0.323  0.460  1.0
  Li  Li1  1  0.757  0.177  0.960  1.0
  Li  Li2  1  0.257  0.677  0.540  1.0
  Li  Li3  1  0.243  0.823  0.040  1.0
  Ga  Ga4  1  0.726  0.567  0.794  1.0
  Ga  Ga5  1  0.774  0.933  0.294  1.0
  Ga  Ga6  1  0.274  0.433  0.206  1.0
  Ga  Ga7  1  0.226  0.067  0.706  1.0
  H  H8  1  0.075  0.271  0.105  1.0
  H  H9  1  0.425  0.229  0.605  1.0
  H  H10  1  0.925  0.729  0.895  1.0
  H  H11  1  0.575  0.771  0.395  1.0
  H  H12  1  0.112  0.476  0.376  1.0
  H  H13  1  0.388  0.024  0.876  1.0
  H  H14  1  0.888  0.524  0.624  1.0
  H  H15  1  0.612  0.976  0.124  1.0
  H  H16  1  0.652  0.390  0.908  1.0
  H  H17  1  0.848  0.110  0.408  1.0
  H  H18  1  0.348  0.610  0.092  1.0
  H  H19  1  0.152  0.890  0.592  1.0
  H  H20  1  0.446  0.623  0.735  1.0
  H  H21  1  0.054  0.877  0.235  1.0
  H  H22  1  0.554  0.377  0.265  1.0
  H  H23  1  0.946  0.123  0.765  1.0
[/CIF]
.
The crystal structure described by LiGaH4 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one H(1), one H(3), one H(4), and two equivalent H(2) atoms to form distorted LiH5 trigonal bipyramids that share corners with five equivalent Ga(1)H4 tetrahedra and  an edgeedge with one Li(1)H5 trigonal bipyramid. Ga(1) is bonded to one H(1), one H(2), one H(3), and one H(4) atom to form GaH4 tetrahedra that share corners with five equivalent Li(1)H5 trigonal bipyramids. There are four inequivalent H sites. In the first H site, H(1) is bonded in a bent 150 degrees geometry to one Li(1) and one Ga(1) atom. In the second H site, H(2) is bonded in a trigonal planar geometry to two equivalent Li(1) and one Ga(1) atom. In the third H site, H(3) is bonded in a bent 150 degrees geometry to one Li(1) and one Ga(1) atom. In the fourth H site, H(4) is bonded in a bent 150 degrees geometry to one Li(1) and one Ga(1) atom. is represented by the CIF file [CIF]
data_LiGaH4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.883
_cell_length_b   7.613
_cell_length_c   7.837
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   103.489
_symmetry_Int_Tables_number   1
_cell_volume   283.276
_cell_formula_units_Z   4
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  0.743  0.323  0.460  1.0
  Li  Li1  1  0.757  0.177  0.960  1.0
  Li  Li2  1  0.257  0.677  0.540  1.0
  Li  Li3  1  0.243  0.823  0.040  1.0
  Ga  Ga4  1  0.726  0.567  0.794  1.0
  Ga  Ga5  1  0.774  0.933  0.294  1.0
  Ga  Ga6  1  0.274  0.433  0.206  1.0
  Ga  Ga7  1  0.226  0.067  0.706  1.0
  H  H8  1  0.075  0.271  0.105  1.0
  H  H9  1  0.425  0.229  0.605  1.0
  H  H10  1  0.925  0.729  0.895  1.0
  H  H11  1  0.575  0.771  0.395  1.0
  H  H12  1  0.112  0.476  0.376  1.0
  H  H13  1  0.388  0.024  0.876  1.0
  H  H14  1  0.888  0.524  0.624  1.0
  H  H15  1  0.612  0.976  0.124  1.0
  H  H16  1  0.652  0.390  0.908  1.0
  H  H17  1  0.848  0.110  0.408  1.0
  H  H18  1  0.348  0.610  0.092  1.0
  H  H19  1  0.152  0.890  0.592  1.0
  H  H20  1  0.446  0.623  0.735  1.0
  H  H21  1  0.054  0.877  0.235  1.0
  H  H22  1  0.554  0.377  0.265  1.0
  H  H23  1  0.946  0.123  0.765  1.0
[/CIF]
.