The crystal structure described by MgGa2 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 8-coordinate geometry to two equivalent Ga(1), two equivalent Ga(4), and four equivalent Ga(3) atoms. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to two equivalent Ga(3), two equivalent Ga(4), and four equivalent Ga(2) atoms. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 2-coordinate geometry to two equivalent Mg(1) and two equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to four equivalent Mg(2), two equivalent Ga(1), two equivalent Ga(3), and two equivalent Ga(4) atoms. In the third Ga site, Ga(3) is bonded in a 6-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), and two equivalent Ga(2) atoms. In the fourth Ga site, Ga(4) is bonded in a 4-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), and two equivalent Ga(2) atoms. is represented by the CIF file [CIF]
data_MgGa2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.622
_cell_length_b   7.622
_cell_length_c   4.621
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   155.439
_symmetry_Int_Tables_number   1
_cell_volume   111.584
_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  0.107  0.893  0.500  1.0
  Mg  Mg1  1  0.787  0.213  0.500  1.0
  Ga  Ga2  1  0.989  0.011  0.000  1.0
  Ga  Ga3  1  0.333  0.667  0.000  1.0
  Ga  Ga4  1  0.670  0.330  0.000  1.0
  Ga  Ga5  1  0.448  0.552  0.500  1.0
[/CIF]
.
The crystal structure described by MgGa2 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 8-coordinate geometry to two equivalent Ga(1), two equivalent Ga(4), and four equivalent Ga(3) atoms. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to two equivalent Ga(3), two equivalent Ga(4), and four equivalent Ga(2) atoms. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 2-coordinate geometry to two equivalent Mg(1) and two equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to four equivalent Mg(2), two equivalent Ga(1), two equivalent Ga(3), and two equivalent Ga(4) atoms. In the third Ga site, Ga(3) is bonded in a 6-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), and two equivalent Ga(2) atoms. In the fourth Ga site, Ga(4) is bonded in a 4-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), and two equivalent Ga(2) atoms. is represented by the CIF file [CIF]
data_MgGa2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.622
_cell_length_b   7.622
_cell_length_c   4.621
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   155.439
_symmetry_Int_Tables_number   1
_cell_volume   111.584
_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  0.107  0.893  0.500  1.0
  Mg  Mg1  1  0.787  0.213  0.500  1.0
  Ga  Ga2  1  0.989  0.011  0.000  1.0
  Ga  Ga3  1  0.333  0.667  0.000  1.0
  Ga  Ga4  1  0.670  0.330  0.000  1.0
  Ga  Ga5  1  0.448  0.552  0.500  1.0
[/CIF]
.