data_MgMn2W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.42
_cell_length_b   4.42
_cell_length_c   2.91
_cell_angle_alpha   91.61
_cell_angle_beta   91.61
_cell_angle_gamma   97.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgMn2W
_chemical_formula_sum   'Mg1 Mn2 W1'
_cell_volume   56.31
_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  0.0  0.0  1.0
  Mn  Mn1  1  0.39  0.34  0.45  1.0
  Mn  Mn2  1  0.39  0.66  0.45  1.0
  W  W3  1  0.91  0.0  0.0  1.0

data_MgMn2W
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.91
_cell_length_b   4.42
_cell_length_c   4.42
_cell_angle_alpha   97.64
_cell_angle_beta   91.61
_cell_angle_gamma   91.61
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgMn2W
_chemical_formula_sum   'Mg1 Mn2 W1'
_cell_volume   56.31
_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  0.0  0.0  1.0
  Mn  Mn1  1  0.45  0.39  0.34  1.0
  Mn  Mn2  1  0.45  0.39  0.66  1.0
  W  W3  1  0.0  0.91  0.0  1.0

Mg Mn Mn W
Mg Mn Mn W 0 3 - o o 1 2 o o o 
MgWMn2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a single-bond geometry to one W(1), two equivalent Mn(1), and two equivalent Mn(2) atoms. The Mg(1)-W(1) bond length is 0.40 Å. There is one shorter (2.46 Å) and one longer (2.71 Å) Mg(1)-Mn(1) bond length. There is one shorter (2.77 Å) and one longer (2.91 Å) Mg(1)-Mn(2) bond length. W(1) is bonded in a single-bond geometry to one Mg(1), two equivalent Mn(1), and two equivalent Mn(2) atoms. There is one shorter (3.19 Å) and one longer (3.28 Å) W(1)-Mn(1) bond length. There is one shorter (2.93 Å) and one longer (2.95 Å) W(1)-Mn(2) bond length. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 5-coordinate geometry to two equivalent Mg(1), two equivalent W(1), and one Mn(2) atom. The Mn(1)-Mn(2) bond length is 1.44 Å. In the second Mn site, Mn(2) is bonded in a 5-coordinate geometry to two equivalent Mg(1), two equivalent W(1), and one Mn(1) atom.