data_Be2BiSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.93
_cell_length_b   4.93
_cell_length_c   3.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2BiSb
_chemical_formula_sum   'Be2 Bi1 Sb1'
_cell_volume   78.84
_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  0.46  0.62  1.0
  Be  Be1  1  0.46  0.0  0.62  1.0
  Bi  Bi2  1  0.46  0.46  0.0  1.0
  Sb  Sb3  1  0.0  0.0  0.0  1.0

data_Be2BiSb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.97
_cell_length_b   6.97
_cell_length_c   3.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Be2BiSb
_chemical_formula_sum   'Be4 Bi2 Sb2'
_cell_volume   157.69
_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
  Be  Be0  4  0.23  0.23  0.62  1.0
  Bi  Bi1  2  0.46  0.0  0.0  1.0
  Sb  Sb2  2  0.0  0.0  0.0  1.0

Be Be Bi Sb
Be Be Bi Sb 0 2 - o o 0 2 - o + 0 2 o o o 0 2 o o + 0 3 o o o 0 3 o o + 0 3 o + o 0 3 o + + 0 1 o o o 0 0 o o + 1 3 o o o 1 3 o o + 1 3 + o o 1 3 + o + 1 2 o - o 1 2 o - + 1 2 o o o 1 2 o o + 1 1 o o + 2 3 o o o 2 2 o o + 3 3 o o + 
Be2BiSb crystallizes in the monoclinic Cm space group. Be(1) is bonded in a 6-coordinate geometry to three equivalent Bi(1) and three equivalent Sb(1) atoms. There are a spread of Be(1)-Bi(1) bond distances ranging from 2.59-3.05 Å. There are a spread of Be(1)-Sb(1) bond distances ranging from 2.59-3.05 Å. Bi(1) is bonded in a 6-coordinate geometry to six equivalent Be(1) atoms. Sb(1) is bonded in a 4-coordinate geometry to six equivalent Be(1) atoms.