data_Ba2AlW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.16
_cell_length_b   5.16
_cell_length_c   4.78
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2AlW
_chemical_formula_sum   'Ba2 Al1 W1'
_cell_volume   127.32
_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  Ba1  1  0.0  0.58  0.39  1.0
  Ba  Ba2  1  0.58  0.0  0.39  1.0
  Al  Al0  1  0.0  0.0  0.0  1.0
  W  W3  1  0.58  0.58  0.0  1.0

data_Ba2AlW
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.3
_cell_length_b   7.3
_cell_length_c   4.78
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ba2AlW
_chemical_formula_sum   'Ba4 Al2 W2'
_cell_volume   254.64
_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  0.29  0.29  0.39  1.0
  Al  Al1  2  0.0  0.0  0.0  1.0
  W  W2  2  0.08  0.5  0.0  1.0

Ba Ba Al W
Ba2WAl crystallizes in the monoclinic Cm space group. Ba(1) is bonded in a 2-coordinate geometry to four equivalent W(1) and three equivalent Al(1) atoms. There are a spread of Ba(1)-W(1) bond distances ranging from 2.86-4.18 Å. There are a spread of Ba(1)-Al(1) bond distances ranging from 2.86-3.63 Å. W(1) is bonded in a 9-coordinate geometry to eight equivalent Ba(1) and one Al(1) atom. The W(1)-Al(1) bond length is 3.06 Å. Al(1) is bonded in a 7-coordinate geometry to six equivalent Ba(1) and one W(1) atom.