data_Be2NbTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.71
_cell_length_b   2.71
_cell_length_c   6.87
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   99.92
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2NbTc
_chemical_formula_sum   'Be2 Nb1 Tc1'
_cell_volume   49.85
_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  0.64  1.0
  Be  Be1  1  0.75  0.0  0.5  1.0
  Nb  Nb2  1  0.0  0.0  0.68  1.0
  Tc  Tc3  1  0.75  0.0  0.37  1.0

data_Be2NbTc
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.71
_cell_length_b   2.71
_cell_length_c   6.87
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   99.92
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2NbTc
_chemical_formula_sum   'Be2 Nb1 Tc1'
_cell_volume   49.85
_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  0.64  1.0
  Be  Be1  1  0.75  0.0  0.5  1.0
  Nb  Nb2  1  0.0  0.0  0.68  1.0
  Tc  Tc3  1  0.75  0.0  0.37  1.0

Be Be Nb Tc
Be Be Nb Tc 0 2 o o o 1 3 o o o 
NbBeBeTc crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one beryllium;niobium molecule and one BeTc cluster. In the BeTc cluster, Be(2) is bonded in a distorted single-bond geometry to one Tc(1) atom. The Be(2)-Tc(1) bond length is 0.88 Å. Tc(1) is bonded in a single-bond geometry to one Be(2) atom.