The structure described by Mg2Ga crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Mg(1), six equivalent Mg(2), and four equivalent Ga(1) atoms. In the second Mg site, Mg(2) is bonded to six equivalent Mg(1) and two equivalent Ga(1) atoms to form a mixture of distorted edge, face, and corner-sharing MgMg6Ga2 cuboctahedra. Ga(1) is bonded in a 6-coordinate geometry to two equivalent Mg(2) and four equivalent Mg(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.989
_cell_length_b   7.989
_cell_length_c   5.323
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   158.185
_symmetry_Int_Tables_number   1
_cell_volume   126.251
_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
  Mg  Mg0  1  0.620  0.380  0.250  1.0
  Mg  Mg1  1  0.940  0.060  0.250  1.0
  Mg  Mg2  1  0.060  0.940  0.750  1.0
  Mg  Mg3  1  0.380  0.620  0.750  1.0
  Ga  Ga4  1  0.277  0.723  0.250  1.0
  Ga  Ga5  1  0.723  0.277  0.750  1.0
[/CIF]
.
The structure described by Mg2Ga crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Mg(1), six equivalent Mg(2), and four equivalent Ga(1) atoms. In the second Mg site, Mg(2) is bonded to six equivalent Mg(1) and two equivalent Ga(1) atoms to form a mixture of distorted edge, face, and corner-sharing MgMg6Ga2 cuboctahedra. Ga(1) is bonded in a 6-coordinate geometry to two equivalent Mg(2) and four equivalent Mg(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.989
_cell_length_b   7.989
_cell_length_c   5.323
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   158.185
_symmetry_Int_Tables_number   1
_cell_volume   126.251
_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
  Mg  Mg0  1  0.620  0.380  0.250  1.0
  Mg  Mg1  1  0.940  0.060  0.250  1.0
  Mg  Mg2  1  0.060  0.940  0.750  1.0
  Mg  Mg3  1  0.380  0.620  0.750  1.0
  Ga  Ga4  1  0.277  0.723  0.250  1.0
  Ga  Ga5  1  0.723  0.277  0.750  1.0
[/CIF]
.