data_Zr2TaBe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.27
_cell_length_b   4.27
_cell_length_c   4.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zr2TaBe
_chemical_formula_sum   'Zr2 Ta1 Be1'
_cell_volume   74.09
_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
  Zr  Zr2  1  0.14  0.0  0.03  1.0
  Zr  Zr3  1  0.0  0.14  0.03  1.0
  Ta  Ta1  1  0.14  0.14  0.0  1.0
  Be  Be0  1  0.0  0.0  0.0  1.0

data_Zr2TaBe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.04
_cell_length_b   6.04
_cell_length_c   4.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Zr2TaBe
_chemical_formula_sum   'Zr4 Ta2 Be2'
_cell_volume   148.19
_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
  Zr  Zr0  4  0.07  0.07  0.03  1.0
  Ta  Ta1  2  0.14  0.0  0.0  1.0
  Be  Be2  2  0.0  0.0  0.0  1.0

Zr Zr Ta Be
BeZr2Ta is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two BeZr2Ta clusters. Be(1) is bonded in an L-shaped geometry to two equivalent Zr(1) atoms. Both Be(1)-Zr(1) bond lengths are 0.59 Å. Zr(1) is bonded in an L-shaped geometry to one Be(1) and one Ta(1) atom. The Zr(1)-Ta(1) bond length is 0.59 Å. Ta(1) is bonded in an L-shaped geometry to two equivalent Zr(1) atoms.