data_BeTc2Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.55
_cell_length_b   3.55
_cell_length_c   4.23
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeTc2Rh
_chemical_formula_sum   'Be1 Tc2 Rh1'
_cell_volume   53.2
_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  0.0  1.0
  Tc  Tc2  1  0.77  0.0  0.11  1.0
  Tc  Tc3  1  0.0  0.77  0.11  1.0
  Rh  Rh1  1  0.77  0.77  0.0  1.0

data_BeTc2Rh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.02
_cell_length_b   5.02
_cell_length_c   4.23
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BeTc2Rh
_chemical_formula_sum   'Be2 Tc4 Rh2'
_cell_volume   106.39
_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
  Be  Be0  2  0.0  0.0  0.0  1.0
  Tc  Tc1  4  0.39  0.39  0.11  1.0
  Rh  Rh2  2  0.27  0.5  0.0  1.0

Be Tc Tc Rh
Be Tc Tc Rh 0 1 - o o 0 2 o - o 1 3 o - o 2 3 - o o 
BeTc2Rh is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two BeTc2Rh clusters. Be(1) is bonded in a 2-coordinate geometry to two equivalent Tc(1) atoms. Both Be(1)-Tc(1) bond lengths are 0.94 Å. Tc(1) is bonded in a 2-coordinate geometry to one Be(1) and one Rh(1) atom. The Tc(1)-Rh(1) bond length is 0.94 Å. Rh(1) is bonded in a 2-coordinate geometry to two equivalent Tc(1) atoms.