data_BeGe2W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.85
_cell_length_b   4.85
_cell_length_c   4.85
_cell_angle_alpha   134.66
_cell_angle_beta   134.66
_cell_angle_gamma   66.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeGe2W
_chemical_formula_sum   'Be1 Ge2 W1'
_cell_volume   56.94
_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
  Ge  Ge1  1  0.87  0.0  0.03  1.0
  Ge  Ge2  1  0.0  0.87  0.03  1.0
  W  W3  1  0.0  0.0  0.07  1.0

data_BeGe2W
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.29
_cell_length_b   5.29
_cell_length_c   4.85
_cell_angle_alpha   90.0
_cell_angle_beta   123.03
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BeGe2W
_chemical_formula_sum   'Be2 Ge4 W2'
_cell_volume   113.88
_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  2  0.0  0.0  0.0  1.0
  Ge  Ge1  4  0.4  0.44  0.84  1.0
  W  W2  2  0.43  0.5  0.93  1.0

Be Ge Ge W
Be Ge Ge W 0 3 o o o 1 3 + o o 2 3 o + o 
BeWGe2 is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two BeWGe2 clusters. Be(1) is bonded in a single-bond geometry to one W(1) atom. The Be(1)-W(1) bond length is 0.33 Å. W(1) is bonded in a 3-coordinate geometry to one Be(1) and two equivalent Ge(1) atoms. Both W(1)-Ge(1) bond lengths are 0.53 Å. Ge(1) is bonded in a single-bond geometry to one W(1) atom.