The structure described by Mg6YGa crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 11-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Y(1), and one Ga(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(3), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Y(1), and two equivalent Ga(1) atoms. In the third Mg site, Mg(3) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(4), four equivalent Mg(1), and two equivalent Y(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and two equivalent Ga(1) atoms. Y(1) is bonded to two equivalent Mg(3), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Ga(1) atoms to form a mixture of distorted corner and face-sharing YMg10Ga2 cuboctahedra. Ga(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(2), and two equivalent Y(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_YMg6Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.081
_cell_length_b   6.134
_cell_length_c   6.693
_cell_angle_alpha   117.277
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   185.393
_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
  Ga  Ga0  1  0.500  0.656  0.312  1.0
  Mg  Mg1  1  0.500  0.682  0.859  1.0
  Mg  Mg2  1  0.500  0.177  0.859  1.0
  Mg  Mg3  1  0.000  0.824  0.150  1.0
  Mg  Mg4  1  0.000  0.325  0.150  1.0
  Mg  Mg5  1  0.000  0.342  0.683  1.0
  Mg  Mg6  1  0.000  0.811  0.622  1.0
  Y  Y7  1  0.500  0.182  0.365  1.0
[/CIF]
.
The structure described by Mg6YGa crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 11-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Y(1), and one Ga(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(3), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Y(1), and two equivalent Ga(1) atoms. In the third Mg site, Mg(3) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(4), four equivalent Mg(1), and two equivalent Y(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and two equivalent Ga(1) atoms. Y(1) is bonded to two equivalent Mg(3), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Ga(1) atoms to form a mixture of distorted corner and face-sharing YMg10Ga2 cuboctahedra. Ga(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(2), and two equivalent Y(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_YMg6Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.081
_cell_length_b   6.134
_cell_length_c   6.693
_cell_angle_alpha   117.277
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   185.393
_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
  Ga  Ga0  1  0.500  0.656  0.312  1.0
  Mg  Mg1  1  0.500  0.682  0.859  1.0
  Mg  Mg2  1  0.500  0.177  0.859  1.0
  Mg  Mg3  1  0.000  0.824  0.150  1.0
  Mg  Mg4  1  0.000  0.325  0.150  1.0
  Mg  Mg5  1  0.000  0.342  0.683  1.0
  Mg  Mg6  1  0.000  0.811  0.622  1.0
  Y  Y7  1  0.500  0.182  0.365  1.0
[/CIF]
.