data_Mg2TcBr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.48
_cell_length_b   5.48
_cell_length_c   4.95
_cell_angle_alpha   115.69
_cell_angle_beta   115.69
_cell_angle_gamma   34.55
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2TcBr
_chemical_formula_sum   'Mg2 Tc1 Br1'
_cell_volume   75.26
_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
  Mg  Mg1  1  0.96  0.0  0.31  1.0
  Mg  Mg2  1  0.27  0.0  0.1  1.0
  Tc  Tc3  1  0.11  0.0  0.21  1.0
  Br  Br0  1  0.0  0.0  0.0  1.0

data_Mg2TcBr
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.26
_cell_length_b   4.95
_cell_length_c   5.48
_cell_angle_alpha   115.69
_cell_angle_beta   107.27
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2TcBr
_chemical_formula_sum   'Mg2 Tc1 Br1'
_cell_volume   75.26
_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
  Mg  Mg0  1  0.0  0.1  0.27  1.0
  Mg  Mg1  1  0.0  0.31  0.96  1.0
  Tc  Tc2  1  0.0  0.21  0.11  1.0
  Br  Br3  1  0.0  0.0  0.0  1.0

Mg Mg Tc Br
Mg2TcBr crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Mg2TcBr cluster. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to one Tc(1) atom. The Mg(1)-Tc(1) bond length is 1.18 Å. In the second Mg site, Mg(2) is bonded in a 2-coordinate geometry to one Tc(1) and one Br(1) atom. The Mg(2)-Tc(1) bond length is 1.18 Å. The Mg(2)-Br(1) bond length is 1.34 Å. Tc(1) is bonded in a distorted single-bond geometry to one Mg(1), one Mg(2), and one Br(1) atom. The Tc(1)-Br(1) bond length is 0.94 Å. Br(1) is bonded in a distorted single-bond geometry to one Mg(2) and one Tc(1) atom.