data_Ta2BeCd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.4
_cell_length_b   5.4
_cell_length_c   5.4
_cell_angle_alpha   148.19
_cell_angle_beta   127.06
_cell_angle_gamma   63.1
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2BeCd
_chemical_formula_sum   'Ta2 Be1 Cd1'
_cell_volume   65.58
_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
  Ta  Ta2  1  0.0  0.0  0.02  1.0
  Ta  Ta3  1  0.48  0.0  0.54  1.0
  Be  Be0  1  0.0  0.0  0.63  1.0
  Cd  Cd1  1  0.0  0.41  0.01  1.0

data_Ta2BeCd
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.96
_cell_length_b   4.81
_cell_length_c   5.4
_cell_angle_alpha   116.47
_cell_angle_beta   105.91
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2BeCd
_chemical_formula_sum   'Ta2 Be1 Cd1'
_cell_volume   65.58
_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
  Ta  Ta0  1  0.0  0.02  0.02  1.0
  Ta  Ta1  1  0.0  0.54  0.06  1.0
  Be  Be2  1  0.0  0.63  0.63  1.0
  Cd  Cd3  1  0.59  0.6  0.6  1.0

Ta Ta Be Cd
Ta Ta Be Cd 0 3 o o o 0 1 - o - 0 1 o o o 0 2 o o - 1 3 o - o 1 3 + o + 1 1 o + + 1 2 o o o 1 2 + o o 2 3 o o + 
BeTa2Cd crystallizes in the triclinic P1 space group. Be(1) is bonded in a 2-coordinate geometry to one Ta(1), two equivalent Ta(2), and two equivalent Cd(1) atoms. The Be(1)-Ta(1) bond length is 2.09 Å. There is one shorter (2.54 Å) and one longer (2.92 Å) Be(1)-Ta(2) bond length. There is one shorter (1.17 Å) and one longer (1.81 Å) Be(1)-Cd(1) bond length. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 7-coordinate geometry to one Be(1), two equivalent Ta(1), two equivalent Ta(2), and two equivalent Cd(1) atoms. Both Ta(1)-Ta(1) bond lengths are 2.96 Å. There is one shorter (2.41 Å) and one longer (2.42 Å) Ta(1)-Ta(2) bond length. There is one shorter (2.25 Å) and one longer (3.15 Å) Ta(1)-Cd(1) bond length. In the second Ta site, Ta(2) is bonded in a 8-coordinate geometry to two equivalent Be(1), two equivalent Ta(1), two equivalent Ta(2), and two equivalent Cd(1) atoms. Both Ta(2)-Ta(2) bond lengths are 2.96 Å. There is one shorter (2.59 Å) and one longer (2.85 Å) Ta(2)-Cd(1) bond length. Cd(1) is bonded in a 2-coordinate geometry to two equivalent Be(1), two equivalent Ta(1), and two equivalent Ta(2) atoms.