data_MnBe2W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.92
_cell_length_b   2.92
_cell_length_c   5.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnBe2W
_chemical_formula_sum   'Mn1 Be2 W1'
_cell_volume   45.49
_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
  Mn  Mn2  1  0.0  0.0  0.63  1.0
  Be  Be0  1  0.0  0.0  0.19  1.0
  Be  Be1  1  0.46  0.46  0.27  1.0
  W  W3  1  0.46  0.46  0.91  1.0

data_MnBe2W
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.13
_cell_length_b   4.13
_cell_length_c   5.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MnBe2W
_chemical_formula_sum   'Mn2 Be4 W2'
_cell_volume   90.99
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Mn  Mn0  2  0.0  0.0  0.63  1.0
  Be  Be1  2  0.0  0.0  0.19  1.0
  Be  Be2  2  0.46  0.0  0.27  1.0
  W  W3  2  0.46  0.0  0.91  1.0

Mn Be Be W
Be2WMn crystallizes in the monoclinic Cm space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded in a 9-coordinate geometry to four equivalent Be(2), four equivalent W(1), and one Mn(1) atom. There are a spread of Be(1)-Be(2) bond distances ranging from 1.94-2.26 Å. There are a spread of Be(1)-W(1) bond distances ranging from 2.42-2.69 Å. The Be(1)-Mn(1) bond length is 2.31 Å. In the second Be site, Be(2) is bonded in a distorted single-bond geometry to four equivalent Be(1) and one W(1) atom. The Be(2)-W(1) bond length is 1.89 Å. W(1) is bonded in a 1-coordinate geometry to one Be(2), four equivalent Be(1), and four equivalent Mn(1) atoms. There are a spread of W(1)-Mn(1) bond distances ranging from 2.43-2.70 Å. Mn(1) is bonded in a 5-coordinate geometry to one Be(1) and four equivalent W(1) atoms.