data_LaBe2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.03
_cell_length_b   4.03
_cell_length_c   5.59
_cell_angle_alpha   108.94
_cell_angle_beta   108.94
_cell_angle_gamma   54.67
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaBe2Tc
_chemical_formula_sum   'La1 Be2 Tc1'
_cell_volume   68.93
_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
  La  La2  1  0.41  0.0  0.62  1.0
  Be  Be0  1  0.12  0.0  0.11  1.0
  Be  Be1  1  0.76  0.0  0.35  1.0
  Tc  Tc3  1  0.38  0.0  0.73  1.0

data_LaBe2Tc
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.7
_cell_length_b   4.03
_cell_length_c   5.59
_cell_angle_alpha   108.94
_cell_angle_beta   90.0
_cell_angle_gamma   117.33
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaBe2Tc
_chemical_formula_sum   'La1 Be2 Tc1'
_cell_volume   68.93
_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
  La  La0  1  0.0  0.59  0.38  1.0
  Be  Be1  1  0.0  0.24  0.65  1.0
  Be  Be2  1  0.0  0.88  0.89  1.0
  Tc  Tc3  1  0.0  0.62  0.27  1.0

La Be Be Tc
La Be Be Tc 0 3 o o o 0 1 o o o 0 2 o o o 0 2 - o o 1 2 - o o 1 2 o o o 1 3 o o - 2 3 + o o 
Be2LaTc crystallizes in the triclinic P1 space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded in a 5-coordinate geometry to two equivalent Be(2), one La(1), and two equivalent Tc(1) atoms. There is one shorter (2.23 Å) and one longer (2.52 Å) Be(1)-Be(2) bond length. The Be(1)-La(1) bond length is 2.69 Å. There is one shorter (2.69 Å) and one longer (3.03 Å) Be(1)-Tc(1) bond length. In the second Be site, Be(2) is bonded in a 6-coordinate geometry to two equivalent Be(1), three equivalent La(1), and one Tc(1) atom. There are a spread of Be(2)-La(1) bond distances ranging from 2.39-3.37 Å. The Be(2)-Tc(1) bond length is 2.71 Å. La(1) is bonded in a single-bond geometry to one Be(1), three equivalent Be(2), and one Tc(1) atom. The La(1)-Tc(1) bond length is 0.67 Å. Tc(1) is bonded in a single-bond geometry to one Be(2), two equivalent Be(1), and one La(1) atom.