data_Mg2FeW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.3
_cell_length_b   5.3
_cell_length_c   5.3
_cell_angle_alpha   145.94
_cell_angle_beta   127.28
_cell_angle_gamma   64.26
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2FeW
_chemical_formula_sum   'Mg2 Fe1 W1'
_cell_volume   65.4
_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  0.0  0.35  0.26  1.0
  Mg  Mg2  1  0.0  0.0  0.3  1.0
  Fe  Fe0  1  0.0  0.0  0.54  1.0
  W  W3  1  0.0  0.35  0.35  1.0

data_Mg2FeW
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.1
_cell_length_b   4.7
_cell_length_c   5.3
_cell_angle_alpha   116.36
_cell_angle_beta   107.03
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2FeW
_chemical_formula_sum   'Mg2 Fe1 W1'
_cell_volume   65.4
_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  Mg0  1  0.0  0.3  0.3  1.0
  Mg  Mg1  1  0.65  0.91  0.91  1.0
  Fe  Fe2  1  0.0  0.54  0.54  1.0
  W  W3  1  0.65  0.99  0.99  1.0

Mg Mg Fe W
Mg2WFe crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Mg2WFe cluster. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a single-bond geometry to one W(1) atom. The Mg(1)-W(1) bond length is 0.44 Å. In the second Mg site, Mg(2) is bonded in a distorted bent 150 degrees geometry to one W(1) and one Fe(1) atom. The Mg(2)-W(1) bond length is 1.68 Å. The Mg(2)-Fe(1) bond length is 1.24 Å. W(1) is bonded in a 2-coordinate geometry to one Mg(1) and one Mg(2) atom. Fe(1) is bonded in a distorted single-bond geometry to one Mg(2) atom.