data_BeCu2W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.74
_cell_length_b   4.74
_cell_length_c   4.6
_cell_angle_alpha   110.4
_cell_angle_beta   110.4
_cell_angle_gamma   31.14
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeCu2W
_chemical_formula_sum   'Be1 Cu2 W1'
_cell_volume   49.87
_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  0.17  0.0  0.3  1.0
  Cu  Cu1  1  0.63  0.0  0.17  1.0
  Cu  Cu2  1  0.07  0.0  0.38  1.0
  W  W3  1  0.68  0.0  0.86  1.0

data_BeCu2W
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.55
_cell_length_b   4.6
_cell_length_c   4.74
_cell_angle_alpha   110.4
_cell_angle_beta   105.57
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeCu2W
_chemical_formula_sum   'Be1 Cu2 W1'
_cell_volume   49.87
_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  0.3  0.17  1.0
  Cu  Cu1  1  0.0  0.17  0.63  1.0
  Cu  Cu2  1  0.0  0.38  0.07  1.0
  W  W3  1  0.0  0.86  0.68  1.0

Be Cu Cu W
CuBeCuW crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one CuBe cluster and one CuW cluster. In the CuBe cluster, Be(1) is bonded in a single-bond geometry to one Cu(2) atom. The Be(1)-Cu(2) bond length is 0.71 Å. Cu(2) is bonded in a single-bond geometry to one Be(1) atom. In the CuW cluster, W(1) is bonded in a single-bond geometry to one Cu(1) atom. The W(1)-Cu(1) bond length is 1.48 Å. Cu(1) is bonded in a distorted single-bond geometry to one W(1) atom.