data_Ba2BeW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.67
_cell_length_b   5.67
_cell_length_c   3.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2BeW
_chemical_formula_sum   'Ba2 Be1 W1'
_cell_volume   123.51
_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
  Ba  Ba0  1  0.83  0.0  0.92  1.0
  Ba  Ba1  1  0.0  0.83  0.92  1.0
  Be  Be2  1  0.0  0.0  0.0  1.0
  W  W3  1  0.83  0.83  0.0  1.0

data_Ba2BeW
_symmetry_space_group_name_H-M   Cm
_cell_length_a   8.01
_cell_length_b   8.01
_cell_length_c   3.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ba2BeW
_chemical_formula_sum   'Ba4 Be2 W2'
_cell_volume   247.02
_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
  Ba  Ba0  4  0.42  0.42  0.92  1.0
  Be  Be1  2  0.0  0.0  0.0  1.0
  W  W2  2  0.33  0.5  -0.0  1.0

Ba Ba Be W
Ba2BeW crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ba2BeW clusters. Ba(1) is bonded in an L-shaped geometry to one Be(1) and one W(1) atom. The Ba(1)-Be(1) bond length is 0.99 Å. The Ba(1)-W(1) bond length is 0.99 Å. Be(1) is bonded in an L-shaped geometry to two equivalent Ba(1) atoms. W(1) is bonded in an L-shaped geometry to two equivalent Ba(1) atoms.