data_BeCdCu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.59
_cell_length_b   4.59
_cell_length_c   4.59
_cell_angle_alpha   131.56
_cell_angle_beta   131.56
_cell_angle_gamma   70.93
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeCdCu2
_chemical_formula_sum   'Be1 Cd1 Cu2'
_cell_volume   52.98
_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
  Cd  Cd1  1  0.88  0.0  0.87  1.0
  Cu  Cu2  1  0.0  0.0  0.74  1.0
  Cu  Cu3  1  0.0  0.88  0.87  1.0

data_BeCdCu2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.76
_cell_length_b   3.76
_cell_length_c   4.59
_cell_angle_alpha   114.22
_cell_angle_beta   114.22
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeCdCu2
_chemical_formula_sum   'Be1 Cd1 Cu2'
_cell_volume   52.98
_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
  Cd  Cd1  1  0.13  0.0  0.01  1.0
  Cu  Cu2  1  0.01  0.88  0.01  1.0
  Cu  Cu3  1  0.26  0.0  0.26  1.0

Be Cd Cu Cu
Be Cd Cu Cu 0 1 - o - 0 3 o - - 0 2 o o - 1 2 + o o 2 3 o - o 
BeCu2Cd is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one BeCu2Cd cluster. Be(1) is bonded in an L-shaped geometry to one Cu(2) and one Cd(1) atom. The Be(1)-Cu(2) bond length is 0.47 Å. The Be(1)-Cd(1) bond length is 0.47 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 2-coordinate geometry to one Cu(2) and one Cd(1) atom. The Cu(1)-Cu(2) bond length is 1.04 Å. The Cu(1)-Cd(1) bond length is 1.04 Å. In the second Cu site, Cu(2) is bonded in a distorted single-bond geometry to one Be(1), one Cu(1), and one Cd(1) atom. The Cu(2)-Cd(1) bond length is 0.63 Å. Cd(1) is bonded in a 3-coordinate geometry to one Be(1), one Cu(1), and one Cu(2) atom.