data_TaBeCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.69
_cell_length_b   6.69
_cell_length_c   6.69
_cell_angle_alpha   155.01
_cell_angle_beta   155.01
_cell_angle_gamma   35.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaBeCl
_chemical_formula_sum   'Ta1 Be1 Cl1'
_cell_volume   53.46
_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  0.41  1.0
  Be  Be0  1  0.0  0.0  0.51  1.0
  Cl  Cl1  1  0.0  0.0  0.83  1.0

data_TaBeCl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.1
_cell_length_b   4.1
_cell_length_c   6.69
_cell_angle_alpha   90.0
_cell_angle_beta   107.82
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TaBeCl
_chemical_formula_sum   'Ta2 Be2 Cl2'
_cell_volume   106.93
_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
  Ta  Ta0  2  0.41  0.0  0.41  1.0
  Be  Be1  2  0.01  0.5  0.51  1.0
  Cl  Cl2  2  0.33  0.5  0.83  1.0

Ta Be Cl
BeTaCl is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two BeTaCl clusters. Be(1) is bonded in a linear geometry to one Ta(1) and one Cl(1) atom. The Be(1)-Ta(1) bond length is 0.66 Å. The Be(1)-Cl(1) bond length is 2.17 Å. Ta(1) is bonded in a single-bond geometry to one Be(1) atom. Cl(1) is bonded in a single-bond geometry to one Be(1) atom.