data_BeBi3W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.04
_cell_length_b   5.04
_cell_length_c   5.04
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeBi3W
_chemical_formula_sum   'Be1 Bi3 W1'
_cell_volume   127.92
_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
  Be  Be0  1  0.0  0.0  0.0  1.0
  Bi  Bi1  1  0.0  0.52  0.0  1.0
  Bi  Bi2  1  0.0  0.0  0.52  1.0
  Bi  Bi3  1  0.52  0.0  0.0  1.0
  W  W4  1  0.52  0.52  0.52  1.0

data_BeBi3W
_symmetry_space_group_name_H-M   R3m
_cell_length_a   7.13
_cell_length_b   7.13
_cell_length_c   8.73
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   BeBi3W
_chemical_formula_sum   'Be3 Bi9 W3'
_cell_volume   383.77
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Be  Be0  3  0.0  0.0  0.0  1.0
  Bi  Bi1  9  0.01  0.51  0.51  1.0
  W  W2  3  0.0  0.0  0.52  1.0

Be Bi Bi Bi W
BeWBi3 is (Cubic) Perovskite structured and crystallizes in the trigonal R3m space group. Be(1) is bonded to six equivalent Bi(1) atoms to form BeBi6 octahedra that share corners with six equivalent Be(1)Bi6 octahedra and faces with eight equivalent W(1)Bi12 cuboctahedra. The corner-sharing octahedra are not tilted. There are three shorter (2.42 Å) and three longer (2.62 Å) Be(1)-Bi(1) bond lengths. W(1) is bonded to twelve equivalent Bi(1) atoms to form WBi12 cuboctahedra that share corners with twelve equivalent W(1)Bi12 cuboctahedra, faces with six equivalent W(1)Bi12 cuboctahedra, and faces with eight equivalent Be(1)Bi6 octahedra. There are a spread of W(1)-Bi(1) bond distances ranging from 3.43-3.70 Å. Bi(1) is bonded in a distorted linear geometry to two equivalent Be(1) and four equivalent W(1) atoms.