data_MgTc2Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.13
_cell_length_b   3.13
_cell_length_c   6.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgTc2Ge
_chemical_formula_sum   'Mg1 Tc2 Ge1'
_cell_volume   61.33
_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  0.0  0.0  0.72  1.0
  Tc  Tc2  1  0.56  0.56  0.07  1.0
  Tc  Tc3  1  0.0  0.0  0.6  1.0
  Ge  Ge0  1  0.56  0.56  0.02  1.0

data_MgTc2Ge
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.42
_cell_length_b   4.42
_cell_length_c   6.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgTc2Ge
_chemical_formula_sum   'Mg2 Tc4 Ge2'
_cell_volume   122.65
_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
  Mg  Mg0  2  0.0  0.0  0.72  1.0
  Tc  Tc1  2  0.0  0.0  0.6  1.0
  Tc  Tc2  2  0.06  0.5  0.07  1.0
  Ge  Ge3  2  0.06  0.5  0.02  1.0

Mg Tc Tc Ge
MgTcTcGe is alpha oxygen-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two germanium;technetium molecules and two MgTc clusters. In each MgTc cluster, Mg(1) is bonded in a single-bond geometry to one Tc(2) atom. The Mg(1)-Tc(2) bond length is 0.76 Å. Tc(2) is bonded in a single-bond geometry to one Mg(1) atom.