data_BeTcHg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.38
_cell_length_b   6.92
_cell_length_c   6.92
_cell_angle_alpha   25.01
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeTcHg2
_chemical_formula_sum   'Be1 Tc1 Hg2'
_cell_volume   68.35
_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  0.28  1.0
  Tc  Tc3  1  0.69  0.0  0.46  1.0
  Hg  Hg1  1  0.69  0.0  0.24  1.0
  Hg  Hg2  1  0.0  0.0  0.22  1.0

data_BeTcHg2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.0
_cell_length_b   3.38
_cell_length_c   6.92
_cell_angle_alpha   90.0
_cell_angle_beta   102.51
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeTcHg2
_chemical_formula_sum   'Be1 Tc1 Hg2'
_cell_volume   68.35
_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  0.72  0.0  0.72  1.0
  Tc  Tc1  1  0.54  0.69  0.54  1.0
  Hg  Hg2  1  0.76  0.69  0.76  1.0
  Hg  Hg3  1  0.78  0.0  0.78  1.0

Be Tc Hg Hg
Be Tc Hg Hg 0 3 o o o 0 1 - o o 0 2 - o o 1 2 o o o 2 3 + o o 
BeTcHg2 is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one BeTcHg2 cluster. Be(1) is bonded in a distorted single-bond geometry to one Tc(1), one Hg(1), and one Hg(2) atom. The Be(1)-Tc(1) bond length is 1.60 Å. The Be(1)-Hg(1) bond length is 1.09 Å. The Be(1)-Hg(2) bond length is 0.42 Å. Tc(1) is bonded in a 2-coordinate geometry to one Be(1) and one Hg(1) atom. The Tc(1)-Hg(1) bond length is 1.49 Å. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a 2-coordinate geometry to one Be(1) and one Tc(1) atom. In the second Hg site, Hg(2) is bonded in a single-bond geometry to one Be(1) atom.