data_Mg2GaW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.81
_cell_length_b   2.81
_cell_length_c   8.95
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   91.29
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2GaW
_chemical_formula_sum   'Mg2 Ga1 W1'
_cell_volume   70.84
_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
  Mg  Mg1  1  0.97  0.0  0.28  1.0
  Mg  Mg2  1  0.97  0.0  0.66  1.0
  Ga  Ga0  1  0.0  0.0  0.0  1.0
  W  W3  1  0.0  0.0  0.47  1.0

data_Mg2GaW
_symmetry_space_group_name_H-M   Pm
_cell_length_a   2.81
_cell_length_b   2.81
_cell_length_c   8.95
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   Mg2GaW
_chemical_formula_sum   'Mg2 Ga1 W1'
_cell_volume   70.86
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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  0.97  0.0  0.28  1.0
  Mg  Mg1  1  0.97  0.0  0.66  1.0
  Ga  Ga2  1  0.0  0.0  0.0  1.0
  W  W3  1  0.0  0.0  0.47  1.0

Mg Mg Ga W
Mg2WGa crystallizes in the monoclinic Pm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to one W(1) and one Ga(1) atom. The Mg(1)-W(1) bond length is 1.70 Å. The Mg(1)-Ga(1) bond length is 2.55 Å. In the second Mg site, Mg(2) is bonded in a single-bond geometry to one W(1) and one Ga(1) atom. The Mg(2)-W(1) bond length is 1.70 Å. The Mg(2)-Ga(1) bond length is 3.00 Å. W(1) is bonded in a linear geometry to one Mg(1) and one Mg(2) atom. Ga(1) is bonded to one Mg(1), one Mg(2), and four equivalent Ga(1) atoms to form a mixture of distorted corner and edge-sharing GaMg2Ga4 octahedra. The corner-sharing octahedra are not tilted. All Ga(1)-Ga(1) bond lengths are 2.81 Å.